1. Tardigrade
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  4. 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 :-

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Q. 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 :-

NEETNEET 2019Motion in a Straight Line

Solution:

$t = \sqrt{\frac{2h}{a_{rel}}}$
In both cases $a_{rel} = g - 0 = g$.
Hence $t_1 = t_2$