In the diagram, an object with mass $m$ is projected from point P to point Q at the top of a cliff of height $h$ with speed $v$. As it moves from P to Q, the object does work $W$ against air resistance. What is the kinetic energy of the object on arrival at point Q?
- A$\frac{1}{2}mv^2 + mgh + W$
- B$\frac{1}{2}mv^2 + mgh - W$
- C$\frac{1}{2}mv^2 - mgh + W$
- D$\frac{1}{2}mv^2 - mgh - W$