Question

With the force and the displacement specified, define the work done by the force.

Answer 1

Work done by the force in the various scenarios are explained here:

1. The work done by the force is positive when the force and the displacement are in the same direction (θ=0⁰)

2. Work done by the force is negative when the force and the displacement are in opposite directions (θ=180⁰)

3. Work done by the force is zero when the applied force does not cause any displacement or when the force and the displacement are perpendicular to each other (θ=90⁰)