Motion in A Straight Line

Question: A ball is dropped on the floor from a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 sec, the average acceleration during contact is



1) 2100\[m/{\sec ^2}\]downwards
2) 2100\[m/{\sec ^2}\]upwards
3) 1400\[m/{\sec ^2}\]
4) 700\[m/{\sec ^2}\]
Solution: Explanation: Explanation
Motion under Gravity

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