Description : A body of mass `(1)/(4) kg` moving with velocity `12 m//s` is stopped by applying a force of 0.6 N. Then impulse is :-
Last Answer : A body of mass `(1)/(4) kg` moving with velocity `12 m//s` is stopped by applying a force of 0.6 N. Then ... A. 7.2 Ns B. 3 Ns C. 2.4 Ns D. None
Description : A ball A of mass 0.25 kg moving on a smooth horizontal table with a velocity of 10 m/s strikes an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after the impact will be a.2.5 m/s b.zero c.5 m/s d.10 m/s e.107 dynes
Last Answer : c. 5 m/s
Description : A gun barrel of mass 600 Kg has a recoil spring of stiffness 294 KN/m. If the barrel recoils 1.3 m on firing, what will be the initial recoil velocity of the barrel? (A) 28.77 m/s (B) 32.77 m/s (C) 35.77 m/s (D) 40.77 m/s
Last Answer : (A) 28.77 m/s
Description : If the velocity of moving vehicles on a road is 24 km/per hour, stopping distance is 19 metres and average length of vehicles is 6 metres, the basic capacity of lane, is (A) 500 vehicles per hour (B) 700 vehicles per hour (C) 1000 vehicles per hour (D) 1250 vehicles per hour
Last Answer : Answer: Option C
Description : An electron is moving with a velocity of `10^(7) m s^(-1)`. Find its energy in electron volts. (Mass of electron `=9.1xx10^(-31) kg` and charge of ele
Last Answer : An electron is moving with a velocity of `10^(7) m s^(-1)`. Find its energy in electron volts. (Mass ... ` and charge of electron `=1.6xx10^(-19) C`)
Description : If you live in a subdivision where the houses all have two car garage; are there still cars parked all over the street?
Last Answer : Usually more than two drivers live there and most people use their garages for storage from all I’ve seen.
Description : A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms
Last Answer : ANSWER: X -- 2500 KILOGRAMS
Description : The piston of a steam engine moves in S.H.M. The crank rotates at 180 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 1 metre from the centre is a.8.88 m/sec b.16.32 m/sec c.5.88 m/sec d.8.16 m/sec e.Zero
Last Answer : e. Zero
Description : A ball of mass 1 kg moving with a velocity of 2 m/sec collides directly with a stationary ball of mass 2 kg. If the first ball comes to rest after the impact the velocity of second ball after impact will be a.1.5 m/sec b.0.5 m/sec c.Zero d.2 m/sec e.1.0 m/sec
Last Answer : e. 1.0 m/sec
Description : Work done by a body of mass 100 kg moving along a circular path of radius 2 m with a uniform velocity of 10 m/sec is a.5000 J b.2500 J c.509.68 J d.None of the above e.Tapered bearing
Last Answer : d. None of the above
Description : A particle moves along a rough plane inclined at 30? to the horizontal. The co-efficient of friction between the particle and the plane is 0.1. Its initial velocity is 15 m/sec. The ratio of the velocity of the particle when it move ... be in the regions a.8 ? 10 b.5 ? 7 c.2 ? 3 d.4 ? 6 e.10 ? 13
Last Answer : b. 5 ? 7
Description : A mass of 5 kg moves on a smooth horizontal plane with a speed of 8 m/s attached to a fixed point on the plane by a string of length 4m. Tension in the string is a.785 b.80N c.392.4N d.None of the above e.Tapered bearing
Last Answer : b. 80N
Description : There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.Why? -Riddles
Last Answer : The taxi driver wasn't driving at the time, he was walking.
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 32 ohms the current will be ________. EL-0018 A. 0.258 amps B. 3.875 amps C. 8.258 amps D. 156 amps
Last Answer : Answer: B
Description : A three hinged arch is loaded with an isolated load 1000 kg at a horizontal distance of 2.5 m from the crown, 1 m above the level of hinges at the supports 10 metres apart. The horizontal thrust is (A) 1250 kg (B) 125 kg (C) 750 kg (D) 2500 kg
Last Answer : (A) 1250 kg
Description : An electron starting at angle `alpha=60^(@)` with a uniform magnetic induction `B=0.1 T` moves with velocity `v=10^(6) m s^(-1)`. A screen is held at
Last Answer : An electron starting at angle `alpha=60^(@)` with a uniform magnetic induction `B=0.1 T` ... to the point on the screen where the electron strikes.
Description : A white ball of mass 1.0 kg moving with initial speed u = 0.5 m s-1 collides with stationary red ball of same mass, they move forward making angle of 90° between their paths. Their speed is A. 1 m s-1 B. 0.354 m s-1 C. 2 m s-1 D. 3 m s-1
Last Answer : 0.354 m s-1
Description : A man bumps into his mathematician friend on the street that he hasn't seen in 5 years. The man asks the mathematician how old his children are. The mathematician, who always replies in riddles ... 'My youngest child has blue eyes.' What are the ages of the mathematicians three children? -Riddles
Last Answer : They are 6, 6, and 1.
Description : A force of 100 Newtons acts for 0.5 seconds on a body of mass 20 kg which is initially at rest. The velocity attained by the body is a.20 m/s b.5 m/s c.2.5 m/s d.0.5 m/s e.107 dynes
Last Answer : c. 2.5 m/s
Description : What force is necessary to accelerate a 1250 kg car at a rate of 40 mss?
Last Answer : F = ma = 1250 x 40 = 50,000 Newtons
Description : A car starts from rest and moves on a straight road with a uniform acceleration of 10 m/s2 for the first 10 s. During the next 10 s, the car move s with the velocity it has attained. What is the total distance covered by the car in 20 s? (a) 500 m (b) 1000 m (c) 1,500 m (d) 2,000 m
Last Answer : Ans:(c)
Description : Determine natural frequency of a system, which has equivalent spring stiffness of 30000 N/m and mass of 20 kg? A 12.32 Hz B 4.10 Hz C 6.16 HzD None of the above
Last Answer : C 6.16 Hz
Description : Determine natural frequency of a system, which has equivalent spring stiffness of 30000 N/m and mass of 20 kg? A. 12.32 Hz B. 4.10 Hz C. 6.16 Hz D. None of the above
Last Answer : C. 6.16 Hz
Description : Determine natural frequency of a system, which has equivalent spring stiffness of 30000 N/m and mass of 20 kg? A) 12.32 Hz B) 4.10 Hz C) 6.16 Hz D) None of the above
Last Answer : C) 6.16 Hz
Description : Determine natural frequency of a system, which has equivalent spring stiffness of 30000 N/m and mass of 20 kg? C ( A )12.32 Hz (B) 4.10 Hz ( C )6.16 Hz (D)None of the above
Last Answer : ( C )6.16 Hz
Description : Determine natural frequency of a system, which has equivalent spring stiffness of 30000 N/m mass of 20 kg? a. 12.32 Hz b. 4.10 Hz c. 6.16 Hz d. None of the above
Last Answer : c. 6.16 Hz
Description : A speed boat moving at a velocity of 25 m/s runs out of gas and drifts to a stop 3 minutes later 100 meters away. What is its rate of deceleration?
Last Answer : 0.14 m/s²
Description : If a bomb is released from a plane moving with uniform velocity, then by the time the bomb reaches the ground, the plane will be (a) Vertically above the bomb (b) Ahead of the bomb (c) Behind the bomb (d) Ahead or behind, depending on its velocity
Last Answer : Ans:(a)
Description : A particle of mass M moves towards right with a velocity 2 V along the x-axis and another of mass 2 M with a velocity V towards left (- x axis). After the collision (they stick together on colliging) ... a.come to rest b.107 dynes c.move towards right d.may move in any direction e.move towards left
Last Answer : c. move towards right
Description : A particle of mass `m` and charge `q` moves with a constant velocity `v` along the positive `x` direction. It enters a region containing a uniform mag
Last Answer : A particle of mass `m` and charge `q` moves with a constant velocity `v` along the positive `x` direction. It enters ... `qaB//m` D. `q(b + a)B//2m`
Description : A car moving at a speed 10 m/s on a straight road is ahead of car B moving in the same direction at 6 m/s. Find the velocity of A relative
Last Answer : A car moving at a speed 10 m/s on a straight road is ahead of car B moving in the same ... Find the velocity of A relative to B and vice-versa.
Description : Certain force acting on a 20 Kg mass changes its velocity from 5 m/s to 2 m/s. Calculate the work done by the force ? -Physics 9th
Last Answer : Certain force acting on 20 kg mass changes its velocity from 5 m s-1 to 2 m s-1. Calculate the work done by the force. (E k)2 = (1 )/2x 20 — (2)2 = 40 J.
Description : A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B Then its path in the region is s
Last Answer : A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B ... . circular,If `v.B=0` D. None of these
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
Description : A block of weight 20 kg slides with an initial velocity of 2 m sec down an inclined plane on to a spring of stiffness 10 kg/cm. If the co--efficient of friction is 0.2, angle ? = 30 the ratio of ... be a.More than one b.One c.Less than one d.Depends on the stiffness of spring e.None of the above
Last Answer : a. More than one
Description : Consider the following assumption made in the analysis of a jet impinging normally on a moving plate to introduce the principle of moment of momentum: 1. Friction between jet and plate is neglected. 2. Flow is steady 3. Impinging momentum of ... b) 1, 2 & 3 only (c) 2, 3 and 4 only (d) 1, 2, 3 & 4
Last Answer : (a) 1, 2 & 4 only
Description : A particle moves in a straight line for 20 seconds with velocity 3 m/s and then moves with velocity 4 m/s for another 20 seconds and finally moves wit
Last Answer : A particle moves in a straight line for 20 seconds with velocity 3 m/s and then moves with velocity 4 m/s for another ... /s B. 4 m/s C. 5 m/s D. zero
Description : In the illustration, the function generators will accept only a signal of a given polarity, if negative is used for ahead and positive for astern, moving the bridge reference in the direction ... cause a speed change until the output voltage exceeds the value of the lube oil pressure override
Last Answer : Answer: C
Description : Average force acting on 900 kg car if it's velocity ranges from 5 m s-1 to 30 m s-1 in 12 s is A. 1875 N B. 2000 NC. 3000 N D. 1560 N
Last Answer : 1875 N
Description : A conducting stick of length 2L and mass m is moving down a smooth inclined plane of inclination `60^(@)` with constant speed 5m/s. A current 2A is fl
Last Answer : A conducting stick of length 2L and mass m is moving down a smooth inclined plane of inclination `60^(@)` with ... )/(4L)` D. `(sqrt(3)mg)/(2L)`
Description : A man weighing 60 kg jumps on a vehicle of weight 240 kg moving with a velocity of 36 km/hours. The velocity of the vehicle after the man has jumped would be a.Less than 3.6 km/hour b.3.6 km/hour c.More than 3.6 km/hour d.4.5 km/hour e.None of the above
Last Answer : a. Less than 3.6 km/hour
Description : …………………………... moves the trash and roots from ahead of shin towords the main furrow so as 10 ensure complete coverage by the plough bottom a. Coulter b. Jointer c. Mould board d. Shin
Last Answer : b. Jointer
Description : The time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m is equal to a.8 sec b.2 sec c.4 sec d.10 sec e.6 sec
Last Answer : c. 4 sec
Description : The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area in m2 , V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3 ) (A) 3.6 AVS.ρ (B) 3.6 A.V.ρ (C) 3.6 A.S. ρ (D) 3.6 AVS/ρ
Last Answer : (A) 3.6 AVS.ρ
Description : A ball moving with uniform velocity comes to rest in a distance of 72 m in 6 s. Its initial velocity and retardation are (a) 12 m/s and 2 m/s2 (b) 12 m/s and 4 m/s2 (c) 24 m/s and 8 m/s2 (d) 24 m/s and 4 m/s2
Last Answer : Ans:(d)
Description : A person of mass ‘m’ kg jumps from a height of ‘h’ meters, he will land on the ground with a velocity equal to: A. √(2 × g × h) B. 1/h × √(2 × g) C. 2gh D. 2√(g × h)
Last Answer : √(2 × g × h)
Description : A gas (density = 1.5 kg/m3 , viscosity = 2 10 -5 kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The ... flowing at 3 m/s will be (A) 8400 Pa/m (B) 12600 Pa/m (C) 18900 Pa/m (D) 16800 Pa/m
Last Answer : (B) 12600 Pa/m
Description : If a proton of mass m is moving with the velocity of light, what will its mass be? -Do You Know?
Last Answer : answer:
Description : If a proton of mass m is moving with velocity of light, how will its mass? -Do You Know?
Description : A particle of mass m is moving along a straight path through the origin of coordinates with a velocity v. The angular momentum of the particle about the origin (a) mv (b) Depends on its distance from origin (c) Is zero (d) Changes from positive to negative as it passes through the origin