How much height must an object of mass $5 k g$ be lifted to have potential energy $5000 J$ ? $[g = 10 m / s^{2}]$

100 m

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50 m

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120 m

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110 m

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Solution

The correct option is A $100 m$
Gravitation potential energy is given by $P . E = m g h$
Given:
Mass $m = 5 k g$
$g = 10 m / s^{2}$
$5000 = 5 \times 10 \times h$
$⟹ h = 100 m$

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