Question

We cannot consider something to be work unless

force is applied to an object resulting in balanced forces.

forces that caused the action were unbalanced and the action occurred in the opposite direction.

action was equal to the reaction and was the result of a balanced force.

force applied causes movement of an object in the same direction as the applied force.

Is it D or something else? Need 100% Thank you!

Answer 1

force applied causes movement of an object in the same direction as the applied force.

Answer 2

Step-by-step explanation:

The product of applied force and the displacement is called the amount of work done by an object. For the work to be done the force and the displacement are two important factors. The mathematical expression for the work done is given by :

`W=Fd\ cos\theta`

Where

`\theta` is the angle between applied force and the displacement

When
`\theta=90`, W = 0

`\theta=0`, W = F d

`\theta=180`, W = -F d

So, we cannot consider something to be work unless force applied causes movement of an object in the same direction as the applied force. Hence, this is the required solution.