A person in left which ascends up. With acceleration 10ms-2 drops a stone from a height 10m the time of decent is
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Answer: 1sec
Explanation:
when the ball is thrown out pf lift moving up with some accleration pseudo force acts on the ball.
as lift acceleration is upwards the pseudo acceleration on the ball is downwards.
hence the acceleration of the ball becomes g+a downwards.
therefore time of descent becomes t=√2h/g+a
=√2×10/20
=1m/s
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