A person throws balls into the air one a...

A person throws balls into the air one after the other at an interval ofone second. The next ball is thrown when the velocityof the ball thrown earlier is zero. To what height the ball rise:

10m

7.5m

20m

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Verified by Experts

The correct Answer is:

Time taken by ball to reach highest point = 1 sec
`v^2 = u^2 - 2gh`
`rArr h = (10^2)/(2 xx 10) = 5m`

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