Description : A boy sitting in a rail road car throws a ball straight up into the air. The ball will fall back into his hands when the rail road car is a.moving at constant velocity b.accelerating ... inclined plane, while another identical block B is released for free fall from the same height e.decelerating
Last Answer : a. moving at constant velocity
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 : A car moving along a straight road with a speed of 120 km/hr, is brought to rest by applying brakes.
Last Answer : A car moving along a straight road with a speed of 120 km/hr, is brought to rest by applying brakes. ... (ii) time taken by the car to come to rest.
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 distance moved and the magnitude of displacement are equal in ? (a) The earth is revolving around the Sun (b) Object moving in circular path (c) The pendulum is moving to and fro (d) Object moving on straight road -Science
Last Answer : (d) only. Distance and displacement in all other cases
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 : A car is moving in a straight path. What is the motion of the car? -Physics
Last Answer : Rectilinear motion or straight line motion
Description : A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. (1) The ball falls – (2) Behind him (3) In front of him (4) Into his hand
Last Answer : (1) Behind him Explanation: The moment ball is thrown, it is moving with the velocity of the car. According to the inertia of motion it will continue to move in the same direction with the same ... is not possible to neglect the resistance caused by air friction. So, the ball will fall behind him.
Description : A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls (1) behind him (2) in front of him (3) into his hand (4) by his side
Last Answer : behind him
Description : If you were driving home at night and saw a small animal in the road, half dead but moving (as if recently struck by a car) would you run it over to put it out of it's misery?
Last Answer : Perhaps if I didn’t think it could be saved.
Description : Stopping distance of vehicles : When brakes are applied to a moving vehicle, the distance it travels before stopping is called stopping distance. It is an important factor for road safety and depends on ... the brake with the deceleration of 5m/s2. Find the stopping distance of the car -Science
Last Answer : Here u=72 km/hr = 72×10003600m/s=2072×10003600m/s=20 m/s , v=0 a= -5 m/s2 Now using the relation v2=u2+2asv2=u2+2as 0=(20)2+2×(−5)×s0=(20)2+2×(−5)×s s=40ms=40m
Description : When the car is still moving traction between the tire and road is least when?
Last Answer : when you are skidding
Description : How would a straight, flat road appear visually?
Last Answer : It depends on your line of sight, from road level, 5 feet up, an airplane etc.
Description : A person walks from point P to point Q along a straight road ¡n 10 minutes, then turns back and returns to point R which is midway
Last Answer : A person walks from point P to point Q along a straight road n 10 minutes, then turns back and ... velocity of the person in going from P to R.
Description : Pick up the correct statement from the following: A. Inlets are provided on the road surface at the lowest point for draining rain water B. Inlets are generally provided at an interval of ... along straight roads C. Inlets having horizontal openings, are called horizontal inlets D. All the above
Last Answer : ANS: D
Description : Three points A, B and C 500 m apart on a straight road have 500 m, 505 m and 510 m as their reduced levels. The road is said to have (A) No gradient between A and C (B) A positive gradient between A and C (C) A negative gradient between A and C (D) A negative gradient between A and B
Last Answer : Answer: Option D
Description : The distance between the towns is only 30 kms as the crow flies. (1) when measured in a straight line (2) when measured in a random manner (3) when measured between the two highest points (4) when the curves of the road are included in the measurement
Last Answer : 1) when measured in a straight line
Description : Milling a hundred pounds of wheat should yield ____ percent straight flour. a. 72 to 75 c. 88 to 90 b. 75 to 80 d. 68 to 70
Last Answer : a. 72 to 75
Description : The locus of instantaneous centre of a moving rigid body a.Epicycloid b.Straight line c.Involute d.Cycloid e.Centrode
Last Answer : e. Centrode
Description : A particle moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance covered in two equal time intervals
Last Answer : A particle moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance covered ... /s C. 5.5 m/s D. 4.8 m/s
Description : Derive equations of motion graphically for a particle having uniform acceleration, moving along a straight line.
Last Answer : Derive equations of motion graphically for a particle having uniform acceleration, moving along a straight line.
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
Description : A man in a train moving with a constant velocity drops a ball on the platform. The path of the ban as seen by an observer standing on the platform is – (1) A straight line (2) A circle (3) A parabola (4) None of these
Last Answer : (3) A parabola Explanation: In the reference frame of the platform the ball has initial horizontal velocity equal to the velocity of the train. The vertical direction is the same observed on the train because both observers agree that gravity is acting on the ball causing an acceleration g.
Description : If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will – (1) Fall in front of him (2) Fall behind him (3) Fall into his hand (4) None of the above
Last Answer : (3) Fall into his hand Explanation: If a person throws a ball vertically upwards in a moving train, it comes hack to his hand. The moment the ball was thrown, the ball was also in motion alone with ... ball move ahead by the same distance. This makes the ball to come back to his hand on its return.
Description : A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be - (1) a parabola (2) a horizontal straight line (3) a vertical straight line (4) a circle
Last Answer : (1) a parabola Explanation: Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So, by Newton's first law, it continues its motion horizontally with that velocity.
Description : When an electron is moving horizontally between oppositely charged plates, it will move in the A. straight line B. fall directly downwards C. move towards positive plates D. curved path
Last Answer : curved path
Description : According to the equation ‘r = (mv)⁄(Be)’, the faster moving particles A. move in smaller circle B. move straight C. move in bigger circle D. move randomly
Last Answer : move in bigger circle
Description : The greatest induced EMF will occur in a straight wire moving at constant speed through a uniform magnetic field when the angle between the direction of the wire's motion and the direction of the magnetic field is w) 0 degrees x) 30 degrees y) 60 degrees z) 90 degrees
Last Answer : ANSWER: Z -- 90 DEGREES
Description : A man in a train moving with a constant velocity drops a ball on the platform. The path of the ball as seen by an observer standing on the platform is (1) A straight line (2) A circle (3) A parabola (4) None of these
Last Answer : A parabola
Description : If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will (1) fall in front of him (2) fall behind him (3) fall into his hand (4) None of the above
Last Answer : fall into his hand
Description : How difficult is it to learn to drive on the other side of the road, when visiting or moving to another country?
Last Answer : Not hard. I learned to drive here in the US. I have rented cars and driven in Australia and the UK. It takes about 10-15 minutes to get the hang of driving on the other side of the road. Right ... were a challenge the first hour or so. But within 30-60 minutes, it feels normal. I had no problems.
Description : The motion of the wheels of a bullockcart while moving on the road is an example of – (1) Oscillatory and rotatory motion (2) Oscillatory and translatory motion (3) Translatory and rotatory motion (4) Translatory motion only
Last Answer : (3) Translatory and rotatory motion Explanation: There are four basic types of motion in mechanical systems: Rotary, Linear, Reciprocating and Oscillating motion. Rotatory motion is turning round in a circle, ... . As a matter of fact, translatory motion and rotatory motion occur at the same time.
Description : The force required by a Vehicle moving round a curved road is?
Last Answer : Centripetal force
Description : Minimum stopping distance for moving vehicles on road with a design speed of 80 km/hour, is (A) 80 m (B) 100 m (C) 120 m (D) 150 m
Last Answer : Answer: Option C
Description : Non-passing sight distance along a road is the longest distance at which the driver of a moving vehicle, may see an obstacle on the pavement (A) 10 cm high (B) 25 cm high (C) 50 cm high (D) 100 cm high
Last Answer : Answer: Option A
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
Description : The motion of the wheels of a bullock-cart while moving on the road is an example of (1) Oscillatory and rotatory motion (2) Oscillatory and translatory motion (3) Translatory and rotatory motion (4) Translatory motion only
Last Answer : Translatory and rotatory motion
Description : The maximum acceleration of a particle moving with simple harmonic motion is ____. A. ω B. ω.r C. ω / 2 π D. 2 π / ω
Last Answer : B. ω.r
Description : The maximum acceleration of a particle moving with simple harmonic motion is ____. (A) ω (B) ω.r (C) ω / 2 π (D) 2 π / ω
Last Answer : (B) ω.r
Description : Data required to plot a moving annual total is ____. a) Production b) Energy c) Both a and b d) None the above
Last Answer : Both a and b
Description : A small swamping resistance is connected in series with operating coil of a moving coil ammter in order to compensate for the effects of ____
Last Answer : temperature variation
Description : Meters with moving coil are normally used for measuring ____
Last Answer : dc only