A body A is Placed on a railway platform and an identical body B in a moving train. Which of the following energies of B are greater than those of A as seen from the ground?

Answer the following questions: When is the speed of a body greater than the magnitude of the velocity of the body?

A light body and a heavy body have the same momentum, which of the two bodies will have greater kinetic energy ?

A body A is dropped vertically from the top of a tower. If another identical body B is thrown horizontally from the same point at the same instant, then

A and B are two bodies. The temperature of A is greater than that of B. The heat will flow from:

Which is contained in a body in greater amount, heat or internal energy

A train is moving slowly at 2 m/s next to a railway platform. A man, 15 m tall, alights from the train such that his feet are fixed on the ground. Taking him to be a rigid body, the instantaneous angular velocity (in rad/sec)is

A siren placed at a railway platform is emitting a sound of frequency 5 kHz. A passenger sitting in a moving train ‘A’ records the frequency of the siren as 5.5 kHz. During his return journey by train ‘B’ he records the frequency of the siren as 6 kHz. The ratio of the speed of train B to that of train A is

A person standing on a platform finds that a train moving with velocity, 0.6c takes one second to pass by him. Find (a) the length of the train as seen by the person and (b) the rest length fo the train .

A person standing on a platform finds that a train moving with velocity, 0.6c takes one second to pass by him. Find (a) the length of the train as seen by the person and (b) the rest length of the train .