First, consider the work done by a force →F in pulling a crate over a displacement →d, in the case where the force is directed at an angle θ above the horizontal, as shown in ...First, consider the work done by a force →F in pulling a crate over a displacement →d, in the case where the force is directed at an angle θ above the horizontal, as shown in Figure \PageIndex6, and the displacement is along the x axis (or rather, we chose the x axis to be parallel to the displacement).
