A body is thrown vertically upwards and rises to a height of $10 m$ . The velocity with which the body was thrown upwards is $(g = 9.8 m / s^{2})$

10 m / s

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20 m / s

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14 m / s

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None of these

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Solution

The correct option is C $14 m / s$
when body reaches at top velocity it has zero.
$v^{2} = u^{2} - 2 g h$
$u = \sqrt{2 g h} = \sqrt{2 * 9.8 * 10} = 14 m / s$

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A body is thrown vertically upwards and rises to a height of 10m. The velocity with which the body was thrown upwards is : (g = 9.8 $m / s^{2}$ )

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