Laws Of Motion Question 176

Question: A coin is dropped in a lift. It takes time t1 to reach the floor when lift is stationary. It takes time t2 when lift is moving up with constant acceleration. Then

Options:

A) t1>t2

B) t2>t1

C) t1=t2

D) t1»t2

Show Answer

Answer:

Correct Answer: A

Solution:

For stationary lift t1=2hg and when the lift is moving up with constant acceleration t2=2hg+a

∴  t1>t2

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