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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

`2100 m//sec^(2)` downwards

B

`2100 m//sec^(2)` upwards

C

`1400m//sec^(2)`

D

`700 m//sec^(2)`

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Verified by Experts

The correct Answer is:
B
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