What is the gravitational potential energy of a $11 k g$ $11 kg$ object on a shelf $\frac{6}{5} m$ $6/5 m$ high?

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What is the gravitational potential energy of a $11 k g$ $11 kg$ object on a shelf $\frac{6}{5} m$ $6/5 m$ high?

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Answer 1 · 2016-01-01T12:40:47

129.492 Joules

Explanation:

The work done to raise an object from the ground is equal to its gravitational potential energy, given by:

$U = m g h$ $U=mgh$

where,

$U$ $U$ is the gravitational potential energy
$m$ $m$ is the mass of the object
$g$ $g$ is the acceleration due to gravity $= 9.81 \frac{m}{s^{2}}$ $=9.81 m/s^2$ for the earth
and $h$ $h$ is the height to which the object is raised.

Therefore, the gravitational potential energy,

$U = 11 \cdot 9.81 \cdot \frac{6}{5}$ $U=11*9.81*6/5$

$= 129.492 J$ $=129.492J$

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What is the gravitational potential energy of a $11 k g$ $11 kg$ object on a shelf $\frac{6}{5} m$ $6/5 m$ high?

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