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 nearlyA. `500sqrt(2) m//s^(2)` upwardsB. `1800sqrt(2) m//s^(2)` downwardsC. `1500sqrt(2) m//s^(2)` upwardsD. `1500sqrt(2) m//s^(2)` downwards

A ball is dropped on the floor from a height of 10m. It rebounds to a

1.	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 nearlyA. `500sqrt(2) m//s^(2)` upwardsB. `1800sqrt(2) m//s^(2)` downwardsC. `1500sqrt(2) m//s^(2)` upwardsD. `1500sqrt(2) m//s^(2)` downwards
Answer» Correct Answer - C `a=(sqrt(2gh_(2))-(-sqrt(2gh_(1))))/(Delta t)`

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