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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, then average acceleration during contact is (1) 2100 m/s² (2) 1400 m/s² (3) 700 m/s² (4) 400 m/s²​

User SLoret
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The answer is 700 m/s
User Tamim
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