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A ball is dropped on the floor from a he...

A ball is dropped on the floor from a height of 10m. It rebounds to a height of 2.5 m if the ball is in contact with floor for 0.01 s then the average acceleration during contact is nearly

A

`500sqrt(2)m//s^(2)` upwards

B

`1800sqrt(2)m//s^(2)` downwards

C

`1500sqrt(2)m//s^(2)` upwards

D

`1500sqrt(2)m//s^(2)` downwards

Text Solution

Verified by Experts

The correct Answer is:
C
`v^(2) =2gh, 4v^(2) = 2gx`
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