Boxes $X$ and $Y$ each have the same mass. Box $X$ is raised straight up by a force of magnitude $F$ until it has moved through a height $h$. Box $Y$ is dragged up a slope by a force with the same magnitude so that it reaches the same height, as shown. Which statement is correct?
- ABoth boxes gain the same amount of gravitational potential energy and the same amount of work is done by the two forces.
- BBoth boxes gain the same amount of gravitational potential energy but more work is done by the force acting on box $Y$ than by the force acting on box $X$.
- CBox $Y$ gains less gravitational potential energy than box $X$ because the weight of box $Y$ is less than the weight of box $X$.
- DBox $Y$ gains more gravitational potential energy than box $X$ as more work is done by the force acting on box $Y$ than by the force acting on box $X$.