$9800\ joule$ of energy was spent to raise a mass of $50\ kg$, the mass was raised to a height of:a). $20\ m$b). $980\ m$c). $10\ m$d). none of these

 Here, energy spent $E=9800\ Joule$

Mass $m=50\ kg.$

Therefore, height of the mass raised $h=\frac{9800}{50\times 9.8\ m/s^2}$

$=50,000\ m$

Therefore, option (d) is correct.

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Updated on: 10-Oct-2022

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