What angle do you use in he work equation?

In the work equation, the angle used is the angle between the direction of the force applied and the direction of the displacement. The work done (W) is calculated using the formula ( W = F \cdot d \cdot \cos(\theta) ), where ( F ) is the magnitude of the force, ( d ) is the displacement, and ( \theta ) is the angle. If the force and displacement are in the same direction, ( \theta ) is 0 degrees, and the cosine of 0 is 1, meaning all the force contributes to the work done.