A ball is thrown vertically upward (relative to the train) …

Physics Motion in a Straight Line Relative Motion MCQ (Single Correct)

A ball is thrown vertically upward (relative to the train) in a compartment of a moving train. (train is moving horizontally)

The ball will maintain the same horizontal velocity as that of the person (or the compartment) at the time of throwing.

If the train is accelerating then the horizontal velocity of the ball will be different from that of the train velocity, at the time of throwing.

If the ball appears to be moving backward to the person sitting in the compartment it means that speed of the train is increasing.

If the ball appears to be moving ahead of the person sitting in the compartment it means the train's motion is retarding.

Text Solution

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(a,c,d) At the time of throwing the ball, it inherits velocity of platform at that moment .

⇒ is correct

And, the horizontal velocity of the ball is constant.

Since, no acceleration in horizontal direction for ball.

⇒ (C, D) are correct

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