Answer:
Work done by gravitational force = 0 joule
Explanation:
Work done is given by the relation
W = F x S joule
Where, F - the force applied in the form of push or pull
S - displacement caused by the force
If a force is acting on a body and it doesn't cause any displacement, then work done will be zero.
Gravitational force acts on the body even if the body is at rest.
<em>Work done by the gravitational is applicable only if there is some vertical component of motion involved.</em>
In this case, some amount of work is done to move the body from point A to B.But, the body is displaced in the horizontal direction. No vertical motion is involved.
So, the work done due to gravitational force on a mass is zero joule.
