8. Centripetal Forces & Gravitation

A $500\mathrm{kg}$ car is driving up a hill. What is the change in potential energy of the car when it undergoes a displacement of $\stackrel{\rightharpoonup }{d}=\left(210m\right)\widehat{i}+\left(2.0m\right)\widehat{j}$.

When is gravitational potential energy transformed into kinetic energy?

What happens to the gravitational potential energy of an object as it moves up a pyramid?

Which object has the most gravitational potential energy?