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A person standing on the floor of an elevator drops a coin. The coin reaches the floor in time $t_{1}$ if the elevator is at rest and in time $t_{2}$ if the elevator is moving uniformly. Then

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t1=t2

t1t2depending upon whether the lift is going up or down

t1>t2

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detailed solution

Correct option is A

In both case elevator is an inertial frame of reference so effective gravity remains same from both the frames. So, time of fall remains same in both cases (since initial velocity is same in both frames).Hence t1=t2

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A person standing on the floor of an elevator drops a coin. The coin reaches the floor in time t1 if the elevator is at rest and in time t2 if the elevator is moving uniformly. Then

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

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A person standing on the floor of an elevator drops a coin. The coin reaches the floor in time $t_{1}$ if the elevator is at rest and in time $t_{2}$ if the elevator is moving uniformly. Then