An elevator is accelerating upwards with a constant acceleration a `ms^-2`. If a coin is dropped in it by a passenger, then.A. the coin starts to fall downwards instantaneously as observed by the passenger.B. the coin starts to fall downwards instantaneously as observed by a ground observer.C. first, coin continues to move up with same acceleration of a `ms^-2` for some time and then starts falling with gravitational acceleration as observed by a ground observer.D. None of these

An elevator is accelerating upwards with a constant acceleration a `ms

1.	An elevator is accelerating upwards with a constant acceleration a `ms^-2`. If a coin is dropped in it by a passenger, then.A. the coin starts to fall downwards instantaneously as observed by the passenger.B. the coin starts to fall downwards instantaneously as observed by a ground observer.C. first, coin continues to move up with same acceleration of a `ms^-2` for some time and then starts falling with gravitational acceleration as observed by a ground observer.D. None of these
Answer» Correct Answer - A After releasing, the coin will come under the effect of gravity only, so it will move with acceleration due to gravity `g` downwards. When the coin in dropped it has velocity in upwards direction same as that of elevator w.r.t. a person on ground, the coin first will go up and then come down. But w.r.t. a passenger in elevator, it will seem to be falling downwards always because passenger himself has velocity upwards.

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