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A ball thrown vertically upwards reaches...

A ball thrown vertically upwards reaches the maximum height in 1s and then it returns. What would be the initial velocity of the ball ? At what maximum height would the ball have reached?

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The correct Answer is:
`9.8ms^(-1), 4.9m`
In equation v=u+gt. put v =0 and find u. Then find h by putting v=0 in equation `v^(2)-u^(2)=2(-g)h`
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