A box of mass 2 kg is lifted diagonally from point A to point B as shown in the given figure. Given that the acceleration due to gravity is 10 $m s^{- 2}$ , what is the gravitational potential energy gained by the box?

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Solution

Given, mass of the box, $m = 2 k g$ , vertical height, $h = 3 m$ and acceleration due to gravity, $g = 10 m s^{- 2}$ .
We know that, gravitational potential energy = $m g h = 2 \times 10 \times 3 = 60 J o u l e$
The gravitational potential energy gained by the object does not depend on its path. Instead, it depends only on its initial and final position.

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