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Asked Dec 20, 2019
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If you toss a ball vertically upward in a uniformly moving train, it returns to its starting place. Will it do the same if the train is accelerating. Explain?

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The ball will not return to the same place if the train is accelerating. This is because the velocity of the train changes continuously because of its acceleration while the ball is in the air. The ball will continue to move with the initial velocity of the train while as the velocity of the train is continuously increasing because of its acceleration. Thus, the velocity of the ball is less than the new velocity of the train. Hence the ball falls backward.

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SciencePhysics

Kinematics

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