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A lift is moving down with acceleration ...

A lift is moving down with acceleration a. A man in the lift drops a ball inside the lift. The acceleration of the ball as observed by the man in the lift and a man standing stationary on the ground are respectively

A

g,g

B

g-a,g-a

C

g-a,g

D

a,g

Text Solution

Verified by Experts

The correct Answer is:
C
As the lift is descending with an acceleration a, so the man also has an acceleration a. Hence the acceleration of the ball with respect to the man in the lift will be (g – a) and with respect to the stationary man on the ground will be g.
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