Where does the gravitational potential energy of an object come from?
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The general expression for gravitational potential energy arises from the law of gravity and is equal to the work done against gravity to bring a mass to a given point in space.
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Explanation: The gravitational potential energy of an object starts building up when there is a increase in height. If you want it mathematically here it is:
gravitational potential energy of an object = mgh (taking g as 9.8 m/s², m as x and h as 0)
when there is no increase in height:
x × 9.8m/s² × 0 = 0
When there is a increase in height: (h = y)
x × 9.8m/s² × y ≠ 0
∴ We can say that the gravitational potential energy of an objects comes due to the virtue of its height.
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