Question

A conservative force F is acting on a body and body moves from point A to B and then B toA then work done by the force is

Answer 1

work done by the body will be zero

Answer 2

Answer: The work done by the force will be zero.

Explanation:

Given that:

• A conservative force F is acting on a body.
• First body moves from point A to B
• Second the same force is applied and the body moves from point B to A.

We have to find the work done by the force F.

Finding the work done:

Let the distance from A to B be x.

Total distance from A to B then B to A will be $x+x=2x$.

But the total displacement will be 0. Because the body comes back to its original position.

Hence, Δx=0.

We know that:

• work done = force*displacement
• W = F.Δx

Putting the value, we get;

W = F * 0 = 0

Hence, the work done by the force is zero.