Barron's 2nd Edition DT Q32

Barron's Book

32) This question asks us to determine the work done by a force. Looking at the given values, we can probably use this equation.

Work(w) is the dot product of Force(F) and Displacement(d)

There is a 10 N force applied to the object. However, the force is not applied in the same direction as the motion of the mass, so we will use the x-component of the force(F). As a result of the force, the mass is displaced 5 meters. We just need to plug this into our work equation to solve the problem.

Work(w) is the dot product of Force(F) and Displacement(d)

Answer: C