In frictionless environment which is fallen first amongst light body or heavy body?

In frictionless environment which is fallen first amongst light body or heavy body?
by

1 Answer

Answer :

While falling, if we neglect air resistance (friction) then only force acting on body is its own weight viz = mg  So now its totally depend on mass of body, more is mass more will be the force acting on body and earlier will it reach the ground and vice verca
by

Related questions

The slow rate of decomposition of fallen logs in nature is due to their (a) anaerobic environment around them (b) low cellulose content (c) low moisture content (d) poor nitrogen content.

Description : The slow rate of decomposition of fallen logs in nature is due to their (a) anaerobic environment around them (b) low cellulose content (c) low moisture content (d) poor nitrogen content.

Last Answer : (d) poor nitrogen content.

How does one create a "Team Work" environment amongst employees?

Description : How does one create a "Team Work" environment amongst employees?

Last Answer : Do they know that you expect them to help each other? At my job, I've noticed a tendency for workers to slack off in retaliation for other workers' slacking off; naturally, this feeds on itself ... other parties breaks down and does the work. You might see if you're dealing with a similar issue.

In the 86th amendment to the Constitution in 2002, which of the following was added as a fundamental duty of every citizen of India? a) A parent or guardian to provide opportunities for education to his child or, as the case may be, ward between the age of six and fourteen years b) To value and preserve the rich heritage of our composite culture c) To promote harmony and the spirit of common brotherhood amongst all people of India transcending religious, linguistic and regional or sectional diversities, to renounce practices derogatory to the dignity of women d) To protect and improve the natural environment including forests, rivers and wild life, and to have compassion for living creatures

Description : In the 86th amendment to the Constitution in 2002, which of the following was added as a fundamental duty of every citizen of India? a) A parent or guardian to provide opportunities for ... the natural environment including forests, rivers and wild life, and to have compassion for living creatures

Last Answer : a) A parent or guardian to provide opportunities for education to his child or, as the case may be, ward between the age of six and fourteen years

Which of the following will increase the ANGULAR MOMENTUM of a person spinning on a rotatable frictionless bar chair? w) moving the arms closer to the body x) moving the arms farther from the body y) moving one arm farther from the body and the other arm closer to the body with spastic repetition z) none of these

Description : Which of the following will increase the ANGULAR MOMENTUM of a person spinning on a rotatable frictionless bar chair? w) moving the arms closer to the body x) moving the arms farther from the body y) ... from the body and the other arm closer to the body with spastic repetition z) none of these

Last Answer : ANSWER: Z -- NONE OF THESE

jade plant indirect light mushy leafs fallen off,why?

Description : jade plant indirect light mushy leafs fallen off,why?

Last Answer : Need Answer

A block slides down a frictionless incline making an angle ? with an elevator floor. The acceleration relative to the incline will be maximum when a.the elevator ascends at constant speed v b.the elevator descends at constant speed v c.107 dynes d.elevator descends with deceleration a e.the elevator descends with acceleration a

Description : A block slides down a frictionless incline making an angle ? with an elevator floor. The acceleration relative to the incline will be maximum when a.the elevator ascends at constant speed v b. ... speed v c.107 dynes d.elevator descends with deceleration a e.the elevator descends with acceleration a

Last Answer : d. elevator descends with deceleration a

The principle of conservation of energy cannot be applied in case of a.Flow of water in a pipe b.A particle moving in gravitational field c.Frictional movement of a particle over a surface d.Frictionless movement of a principle over a surface e.Simple pendulum

Description : The principle of conservation of energy cannot be applied in case of a.Flow of water in a pipe b.A particle moving in gravitational field c.Frictional movement of a particle over a surface d.Frictionless movement of a principle over a surface e.Simple pendulum

Last Answer : c. Frictional movement of a particle over a surface

A block of mass 2 kg is resting on a frictionless plane. It is struck by a jet releasing water at a rate of 1 kg/s with speed 5 m/s. The initial accel

Description : A block of mass 2 kg is resting on a frictionless plane. It is struck by a jet releasing water at a rate of 1 kg/s with speed 5 m/s. The initial accel

Last Answer : A block of mass 2 kg is resting on a frictionless plane. It is struck by a jet releasing water at a rate of 1 kg/s ... `10 m//s^(2)` D. `15 m//s^(2)`

Assertion : Maximum movement is possible at the amphiarthrosis joint. Reason : Such joint are also called synovial joints and have almost frictionless

Description : Assertion : Maximum movement is possible at the amphiarthrosis joint. Reason : Such joint are also called synovial joints and have almost frictionless

Last Answer : Assertion : Maximum movement is possible at the amphiarthrosis joint. Reason : Such joint are also ... D. If both Assertion and Reason are false.

A moving bullet hits a solid target resting on a frictionless surface and gets embedded in it. What is conserved in this process? (a) Both momentum and kinetic energy (b) Kinetic energy alone (c) Momentum alone (d) Neither momentum nor kinetic energy

Description : A moving bullet hits a solid target resting on a frictionless surface and gets embedded in it. What is conserved in this process? (a) Both momentum and kinetic energy (b) Kinetic energy alone (c) Momentum alone (d) Neither momentum nor kinetic energy

Last Answer : Ans:(c)

Superconductivity is a material property associated with - (1) cooling a substance without a phase change (2) frictionless liquid flow (3) a loss of thermal resistance (4) a loss of electrical resistance

Description : Superconductivity is a material property associated with - (1) cooling a substance without a phase change (2) frictionless liquid flow (3) a loss of thermal resistance (4) a loss of electrical resistance

Last Answer : (3) a loss of thermal resistance Explanation: Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials, called superconductors.

The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Description : The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Last Answer : (3) to reduce heat loss by radiation Explanation: Polished surfaces are poor radiators of heat. So loss of heat on that account is reduced and the electric iron remains hotter than otherwise.

The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Description : The base of an electric iron is brightly polished mainly - (1) to make it smooth and frictionless (2) to make it rust-proof (3) to reduce heat loss by radiation (4) to make it more durable

Last Answer : (3) to reduce heat loss by radiation Explanation: Polished surfaces are poor radiators of heat. So loss of heat on that account is reduced and the electric iron remains hotter than otherwise.

A mass of 1 kg is attached to two identical springs each with stiffness k = 20 kN/m as shown in the figure. Under frictionless condition, the natural frequency of the system in Hz is close to * 1 point (A) 32 (B) 23 (C) 16 (D) 11

Description : A mass of 1 kg is attached to two identical springs each with stiffness k = 20 kN/m as shown in the figure. Under frictionless condition, the natural frequency of the system in Hz is close to * 1 point (A) 32 (B) 23 (C) 16 (D) 11

Last Answer : (A) 32

Bernoulli's equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli's equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent. D. Fluid is compressible. E. Fluid is incompressible. (A) A, C, D (B) B, D, E (C) A, B, E (D) A, D, E

Description : Bernoulli's equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli's equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is ... A, C, D (B) B, D, E (C) A, B, E (D) A, D, E

Last Answer : (C) A, B, E

Pascal's law is valid, only when the fluid is (A) Frictionless and at rest (B) At rest (C) At rest and when the frictionless fluid is in motion (D) None of these

Description : Pascal's law is valid, only when the fluid is (A) Frictionless and at rest (B) At rest (C) At rest and when the frictionless fluid is in motion (D) None of these

Last Answer : (B) At rest

Select the wrong statement pertaining to flow of an incompressible fluid through a Venturimeter. (A) For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the Venturimeter(B) Discharge of fluid through a Venturimeter depends upon the gagedifference irrespective of the orientation of Venturimeter(C) Venturimeter occupies less space than an orificemeter(D) Venturimeter incurs less power loss compared to an equivalentorificemeter

Description : Select the wrong statement pertaining to flow of an incompressible fluid through a Venturimeter. (A) For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal ... than an orificemeter (D) Venturimeter incurs less power loss compared to an equivalent orificemeter

Last Answer : (C) Venturimeter occupies less space than an orificemeter

The contraction co-efficient for Borda's mouthpiece (for frictionless fluid) is (A) 0.1 (B) 0.5 (C) 0.94 (D) 1

Description : The contraction co-efficient for Borda's mouthpiece (for frictionless fluid) is (A) 0.1 (B) 0.5 (C) 0.94 (D) 1

Last Answer : (B) 0.5

The pressure intensity is the same in all directions at a point in a fluid (A) Only when the fluid is frictionless (B) Only when the fluid is at rest having zero velocity (C) When there is no motion of one fluid layer relative to an adjacent layer (D) Regardless of the motion of one fluid layer relative to an adjacent layer

Description : The pressure intensity is the same in all directions at a point in a fluid (A) Only when the fluid is frictionless (B) Only when the fluid is at rest having zero velocity (C) When there is ... relative to an adjacent layer (D) Regardless of the motion of one fluid layer relative to an adjacent layer

Last Answer : C) When there is no motion of one fluid layer relative to an adjacent layer

Bernoulli's equation for steady, frictionless, continuous flow states that the __________ at all sections is same. (A) Total pressure (B) Total energy (C) Velocity head (D) None of these

Description : Bernoulli's equation for steady, frictionless, continuous flow states that the __________ at all sections is same. (A) Total pressure (B) Total energy (C) Velocity head (D) None of these

Last Answer : (B) Total energy

In an incompressible flow of fluid, the fluid (A) Temperature remains constant (B) Compressibility is greater than zero (C) Density does not change with pressure & temperature (D) Is frictionless

Description : In an incompressible flow of fluid, the fluid (A) Temperature remains constant (B) Compressibility is greater than zero (C) Density does not change with pressure & temperature (D) Is frictionless

Last Answer : (C) Density does not change with pressure & temperature

An ideal fluid is (A) Frictionless & incompressible (B) One, which obeys Newton's law of viscosity (C) Highly viscous (D) None of these

Description : An ideal fluid is (A) Frictionless & incompressible (B) One, which obeys Newton's law of viscosity (C) Highly viscous (D) None of these

Last Answer : (A) Frictionless & incompressible

In deriving Bernoulli's equation, fluid is assumed to be (A) Incompressible, frictionless, steady, along a streamline (B) Uniform, steady, incompressible, along a streamline (C) Steady, density being pressure dependent, frictionless (D) None of these

Description : In deriving Bernoulli's equation, fluid is assumed to be (A) Incompressible, frictionless, steady, along a streamline (B) Uniform, steady, incompressible, along a streamline (C) Steady, density being pressure dependent, frictionless (D) None of these

Last Answer : (A) Incompressible, frictionless, steady, along a streamline

Pascal law is not applicable for a/an __________ fluid. (A) Accelerating frictionless (B) Static (C) Uniformly moving (D) None of these

Description : Pascal law is not applicable for a/an __________ fluid. (A) Accelerating frictionless (B) Static (C) Uniformly moving (D) None of these

Last Answer : (D) None of these

Potential flow is characterised by the (A) Irrotational and frictionless flow(B) Irrotational and frictional flow(C) One in which dissipation of mechanical energy into heat occurs(D) Formation of eddies within the stream

Description : Potential flow is characterised by the (A) Irrotational and frictionless flow (B) Irrotational and frictional flow (C) One in which dissipation of mechanical energy into heat occurs (D) Formation of eddies within the stream

Last Answer : (A) Irrotational and frictionless flow

An irreversible process (A) Is the analog of linear frictionless motion in machines (B) Is an idealised visualisation of behaviour of a system (C) Yields the maximum amount of work (D) Yields an amount of work less than that of a reversible process

Description : An irreversible process (A) Is the analog of linear frictionless motion in machines (B) Is an idealised visualisation of behaviour of a system (C) Yields the maximum amount of work (D) Yields an amount of work less than that of a reversible process

Last Answer : (D) Yields an amount of work less than that of a reversible process

The normal stress is the same in all directions at a point in a fluid, only when the fluid (A) Is at rest & has zero viscosity (B) Is frictionless (C) Fluid layer has no motion relative to an adjacent layer of fluid (D) is incompressible & frictionless

Description : The normal stress is the same in all directions at a point in a fluid, only when the fluid (A) Is at rest & has zero viscosity (B) Is frictionless (C) Fluid layer has no motion relative to an adjacent layer of fluid (D) is incompressible & frictionless

Last Answer : (D) is incompressible & frictionless

The normal stress is same in all directions at a point in a fluid (A) Only when the fluid is frictionless (B) Only when the fluid is incompressible and has zero viscosity (C) When there is no motion of one fluid layer relative to an adjacent layer (D) Irrespective of the motion of one fluid layer relative to an adjacent layer

Description : The normal stress is same in all directions at a point in a fluid (A) Only when the fluid is frictionless (B) Only when the fluid is incompressible and has zero viscosity (C) When there ... to an adjacent layer (D) Irrespective of the motion of one fluid layer relative to an adjacent layer

Last Answer : Answer: Option C

Refer to problem # 11. Determine the force that accelerates if to 12 m/s^2. horizontally along frictionless plane.  A. 2474.23 N  B. 2574.23 N  C. 3474.23 N  D. 2374.23 N Formula : M = wk / g F = ma /k

Description : Refer to problem # 11. Determine the force that accelerates if to 12 m/s^2. horizontally along frictionless plane.  A. 2474.23 N  B. 2574.23 N  C. 3474.23 N  D. 2374.23 N Formula : M = wk / g F = ma /k

Last Answer : 2474.23 N

A ______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero.  A. Isentropic flow  B. Isobaric flow  C. Steady flow  D. Uniform flow

Description : A ______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero.  A. Isentropic flow  B. Isobaric flow  C. Steady flow  D. Uniform flow

Last Answer : Isentropic flow

In a pressure penstock 4500 m long, water is flowing at a velocity of 4 m/s. If the velocity of the pressure wave traveling in the pipe, due sudden complete closure of a valve at the downstream end, is given as 1500 m/s, what would be the period of oscillation in second under frictionless conditions? (a) 6 (b) 8 (c) 9 (d) 11

Description : In a pressure penstock 4500 m long, water is flowing at a velocity of 4 m/s. If the velocity of the pressure wave traveling in the pipe, due sudden complete closure of a valve at the downstream end, is ... period of oscillation in second under frictionless conditions? (a) 6 (b) 8 (c) 9 (d) 11

Last Answer : (a) 6

You are sitting in a frictionless barber chair. The barber decides to have some fun with you, so he spins the chair. As you spin, you find that you can slow down by extending your arms and legs. You have: w) decreased your angular momentum x) increased your angular momentum y) increased your moment of inertia z) changed the direction of the momentum vector

Description : You are sitting in a frictionless barber chair. The barber decides to have some fun with you, so he spins the chair. As you spin, you find that you can slow down by extending your ... increased your angular momentum y) increased your moment of inertia z) changed the direction of the momentum vector

Last Answer : ANSWER: Y --INCREASED YOUR MOMENT OF INERTIA

A firecracker is placed in the middle of a cluster of stationary billiard balls. The firecracker-billiard ball system sits on a frictionless surface. As the firecracker explodes, the balls scatter. What is the momentum of the SYSTEM after the explosion of the firecracker? w) greater than the momentum of the system before the explosion x) equal to the combined speed of the balls y) equal to the mass of the balls z) zero

Description : A firecracker is placed in the middle of a cluster of stationary billiard balls. The firecracker-billiard ball system sits on a frictionless surface. As the firecracker explodes, the balls scatter. What is the momentum ... to the combined speed of the balls y) equal to the mass of the balls z) zero

Last Answer : ANSWER: Z -- ZERO

Two hockey pucks, of unequal mass and connected by a spring of negligible mass, rest on a horizontal frictionless surface. The spring is released, and the pucks move apart. The center of mass of the two pucks does one of the following. Does it: w) move in a circle x) move in the direction of the greater mass y) remain stationary z) move in the direction of the smaller mass

Description : Two hockey pucks, of unequal mass and connected by a spring of negligible mass, rest on a horizontal frictionless surface. The spring is released, and the pucks move apart. The center of mass of ... the direction of the greater mass y) remain stationary z) move in the direction of the smaller mass

Last Answer : ANSWER: Y -- REMAIN STATIONARY

An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?

Description : An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass through the equilibrium position is 5 meters per second, what is the mass's maximum displacement from equilibrium?

Last Answer : ANSWER: 2 METERS

A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The mass is displaced 3 meters from its equilibrium position and released. What is the kinetic energy of the mass as it passes through its equilibrium position?

Description : A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The ... and released. What is the kinetic energy of the mass as it passes through its equilibrium position? 

Last Answer : ANSWER: 90 JOULES

A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second

Description : A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second

Last Answer : ANSWER: X -- 0.5 METERS PER SECOND

A box is initially at rest on a horizontal, frictionless table. If a force of 10 Newtons acts on the box for 3 seconds, what is the momentum of the box at the end of the 3 second interval?

Description : A box is initially at rest on a horizontal, frictionless table. If a force of 10 Newtons acts on the box for 3 seconds, what is the momentum of the box at the end of the 3 second interval?

Last Answer : ANSWER: 30 NEWTON-SECONDS or 30 KILOGRAM-METER PER SECOND

Two metallic blocks having masses in the ratio 2:3 are made to slide down a frictionless inclined plane starting

Description : Two metallic blocks having masses in the ratio 2:3 are made to slide down a frictionless inclined plane starting from rest position. When the blocks reach the bottom of the inclined plane, they will have their kinetic energies in the ratio : (A) 2:3 (B) 3:5 (C) 3:2 (D) 7:4

Last Answer : Two metallic blocks having masses in the ratio 2:3 are made to slide down a frictionless inclined plane starting from rest position. When the blocks reach the bottom of the inclined plane, they will have their kinetic energies in the ratio : 2:3

I wear a huge dark cloak, not unlike the one of a wizard, I am the opposite of warm, I don't walk-I float, I prefer to be sad, not happy. I appear in clouds, not in the sky, I can only be extinguished by a happy spell, I will take your soul, if you cross my path. I am a foul creature, amongst the foulest, you might call me a light extinguisher. What am I? -Riddles

Description : I wear a huge dark cloak, not unlike the one of a wizard, I am the opposite of warm, I don't walk-I float, I prefer to be sad, not happy. I appear in clouds, not in the sky, I can only ... path. I am a foul creature, amongst the foulest, you might call me a light extinguisher. What am I? -Riddles

Last Answer : A dementor from Harry Potter.

If you don't know you fell asleep, does your body still get the benefit of having fallen asleep?

Description : If you don't know you fell asleep, does your body still get the benefit of having fallen asleep?

Last Answer : I am guessing with that short a final interval, you get ripped out of sleep right in the middle of the deep sleep phase, which will absolutely wreck you. Happens to me all the time. You can try to ... if you are quick about the business you need to perform, and keep the lights down while you do it.

A body is falling from a height h. After it has fallen a height h/2 (HALF WAY), it will possess -Physics

Description : A body is falling from a height h. After it has fallen a height h/2 (HALF WAY), it will possess -Physics

Last Answer : half potential and half kinetic energy

Which amongst the following is largest endocrine gland in the body? (1) Thyroid (2) Parathyroid (3) Adrenal (4) Pituitary

Description : Which amongst the following is largest endocrine gland in the body? (1) Thyroid (2) Parathyroid (3) Adrenal (4) Pituitary

Last Answer : (1) Thyroid Explanation: Endocrine glands are glands of the endocrine system that, secrete their products, hormones, directly into the blood rather than through a duct. The main endocrine glands include ... neck, below the thyroid cartilage (which forms the laryngeal prominence, or "Adam's apple").

Who amongst the following got a Nobel Prize in recognition of his discoveries of how salts and water transported in and out of cells in the human body ? (1) Roderick MacKinnon (2) Kurt Wuethrich (3) John E. Sultan (4) H. Robert Horvitz

Description : Who amongst the following got a Nobel Prize in recognition of his discoveries of how salts and water transported in and out of cells in the human body ? (1) Roderick MacKinnon (2) Kurt Wuethrich (3) John E. Sultan (4) H. Robert Horvitz

Last Answer : Roderick MacKinnon

Which amongst the following is largest endocrine gland in the body ? (1) Thyroid (2) Parathyroid (3) Adrenal (4) Pituitary

Description : Which amongst the following is largest endocrine gland in the body ? (1) Thyroid (2) Parathyroid (3) Adrenal (4) Pituitary

Last Answer : Thyroid

If two bodies one light and one heavy have equal kinetic energies, which one has a greater momentum? a.Momentum depends on velocities b.Heavy body c.Both have equal momentum d.Nothing can be concluded on the basis of information provided e.Light body

Description : If two bodies one light and one heavy have equal kinetic energies, which one has a greater momentum? a.Momentum depends on velocities b.Heavy body c.Both have equal momentum d.Nothing can be concluded on the basis of information provided e.Light body

Last Answer : b. Heavy body

Have you ever fallen for someone you couldn't have?

Description : Have you ever fallen for someone you couldn't have?

Last Answer : Yes. I got confused and ended up obsessing over her. Then I failed out of university. She was perfect. Next time I won’t stay on the fence, and I would ask the next one out faster. Now she is married with three children.

Am I wrong in my perception that the number of questions posted daily here has fallen drastically?

Description : Am I wrong in my perception that the number of questions posted daily here has fallen drastically?

Last Answer : I noticed this a few years ago. Same thing, just a couple questions per section. It gets busy, then it dies off. I don’t believe this is something new.

Have you ever fallen on hard times, and did it change you?

Description : Have you ever fallen on hard times, and did it change you?

Last Answer : Not really. There was a period of some 6 months in my youth when I was broke, but without any dependents, and couldn't care less. I had a girl who adored me and spoiled me shamefully ... express my appreciation. By then she had a lucky husband who (unlike myself) appeared to deserve her.

Have you ever literally fallen asleep before your head hit the pillow?

Description : Have you ever literally fallen asleep before your head hit the pillow?

Last Answer : Cool story! BRAVO