By definition, we have that work is defined as the product point between two vectors.
We have then:
[tex] W = F.d
[/tex]
Where,
F: force in the direction of displacement
d: distance traveled
Rewriting the equation we have:
[tex] W = | F || d | cos (x)
[/tex]
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.
