How much work does it take to raise a $52 k g$ $52 kg$ weight $21 m$ $21 m$ ?

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How much work does it take to raise a $52 k g$ $52 kg$ weight $21 m$ $21 m$ ?

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Answer 1 · 2015-12-31T23:11:59

10712.52 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 work done,

$W = U = 52 \cdot 9.81 \cdot 21$ $W=U=52*9.81*21$

$= 10712.52 J$ $=10712.52J$

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How much work does it take to raise a $52 k g$ $52 kg$ weight $21 m$ $21 m$ ?

1 Answer

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Impact of this question

Science

Math

Humanities

... and beyond

How much work does it take to raise a 52kg52 kg weight 21m21 m ?

1 Answer

Explanation:

Related questions

Impact of this question

How much work does it take to raise a $52 k g$ $52 kg$ weight $21 m$ $21 m$ ?