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A stone is thrown vertically upwards. Wh...

A stone is thrown vertically upwards. When stone is at a height half of its maximum height, its speed is `10 ms^-1` , then the maximum height attained by the stone is (`g= 10 ms^(-2)`)

A

`8m`

B

`10m`

C

`15m`

D

`20m`

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The correct Answer is:
B
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