Question

In which situation is work being done?

No force is applied.

The force does not result in displacement.

The force and displacement are perpendicular to each other.

The force and displacement are in the same direction.

Answer 1

D.) The force and displacement are in the same direction.

Hope this helps!

Answer 2

By definition, we have that work is defined as the product point between two vectors.

We have then:

`image`

Where,

F: force in the direction of displacement

d: distance traveled

Rewriting the equation we have:

`image`

If the force and the displacement go in the same direction, then the cosine of the angle is different from zero and therefore there is work done.

Answer:

The force and displacement are in the same direction.