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Question

A person sitting in the rear end of the compartment throws a ball towards the front end.The ball follows a parabolic path.The train is moving with velocity of $20 m / s$ .A person standing outside on the ground also observes the ball.How will the maximum heights $y_{m}$ attained and the ranges $R$ seen by the thrower and the outside observer compare with each other?

A

same $y_{m}$ different $R$

B

same $y_{m}$ and $R$

C

differently $y_{m}$ same $R$

D

differently $y_{m}$ and $R$

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Solution

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Correct option is A)

The motion of train will affect only the horizontal component of the velocity of the ball.Since , vertical component is same for both observers, the $y_{m}$ will be same ,but range R will be different.

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