Answer:
0
Explanation:
When the ball is going upward
The force mg is acting downward and the dispalcement is upward
So, the work done by the gravitational force is - mgh.
When the ball is going downward
The force mg is acting downward and the dispalcement is downward
So, the work done by the gravitational force is mgh.
The total work done in entire trip is mgh - mgh = 0.
The work done by the gravitational force due to the motion of the ball is zero.
Work is said to be done when the applied displaces an object over a given distance.
W = mgΔh
where;
W = mg(0)
W = 0
The work done by force of gravity is zero since the change in the height of the object is zero.
Thus, the work done by the gravitational force due to the motion of the ball is zero.
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