An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?


Answer :

Work done by the force of gravity on an object depends solely on vertical displacement. Vertical displacement is given by the distinction within the initial and final positions/heights of the thing that is zero.

We know that, \( W= m g h \)

W = m g × zero = 0 J
{h= Vertical displacement = zero}

\(\therefore \) Work done is zero.

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