A uniformly moving train passes by a long platform. Consider the events ' engine crossing the beginning of the platform' and the ' engine crossing the end of the platform '. Which frame (train frame (train frame or the platform frame ) is the proper frame for the pair of events ?

A hypothetical train moving with a speed of 0.6 c passes by the platform of a small station without being slowed down. The observes on the platform note that the length of the train is just equal to the length of the platform which is 200 m . (a) Find the rest length of the train (b) Find the length of the platform as measured by the obsevers in the train .

The passenger of example slept with his head towards the engine and feet towards the guard's coach. If he measured 6 ft in the train frame, how tall is he in the ground frame ?

Two babies are born in a moving train, one in the compartment adjacent to the engine and other in the compartment adjacent to the guard. According to the train frame , the babies are born at the same instant of time. Who is elder according to the ground frame?

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 .

The pamban sea Bridge is a railway bridge of length about 2065 m constructed on the palkstrait, which connects the Island town of Ramerswaram to Mandapam, the main land of India. The Bridge is restricted to a uniform speed of only 12.5 m/s If a train of length 560 m starts at the entry point of the bridge from Mandapam, then (i) Find as equation of the motion of the train . (ii) When does the engine touch Island (iii) When does the last coach cross the point of the bridge (iv) What is the time taken by a train to cross the bridge.

A train approaching a platform at a speed of 54 km h^-1 sounds a whistle. An observer on the platform finds its frequency to be 1620 Hz. The train passes the platform keeping the whistle on and without slowing down. What frequency will the observer hear after the train has crossed the platfrom ? The speed of sound in air = 332 ms^-1

When a train starts, the head of a standing passenger seems to be pushed backward. Analyze the situation from the ground frame. Does it really go backward? Coming back to the train frame, how do you explain the backward movement of the head on the basis of Newton's laws?

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?

A 100 kg block is started with a speed of 2.0 m s^(-1) on a long, rough belt kept fixed in a horizontal position. The coefficient of kinetic friction between the block and the belt is 0.20. (a) calculate the change in the internal energy of the block-belt system as the block comes to a stop on the belt. (b) consider the situation from a frame of reference moving at 2.0 m s^(-1) along the initial velocity of the block. as seen from this frame, the block is gently put on a moving belt and in due time the block starts moving with the belt at 2.0 m s^(-1) , calculate the increase in the kinetic energy of the block as it stops slipping past the belt. (c ) find the work done in this frame by the external force holding the belt.

Two events take place simultaneously at points A and B as seen in the lab. Frame. They also occur simultaneously in a frame moving with respect to the lab in a direstion