Chapter 8, Problem 68P

Shown below is a box of mass $m_1$ that sits on a frictionless incline at an angle above the horizontal $\theta ={30}^{\circ }$. This box is connected by a relatively massless string, over a frictionless pulley, and finally connected to a box at rest over the ledge, labeled $m_2$ . If m 1 and $m_2$ are a height $h$ above the ground and $m_2\gg m_1:$ (a) What is the initial gravitational potential energy of the system? (b) What is the final kinetic energy of the system?