# Moving Pulley System#

A truck moving at a constant velocity has a mass $$m_1$$ in its back connected by a massless frictionless pulley to a hanging mass $$m_2$$ as shown in the image.

## Part 1#

What direction is the acceleration of the mass $$m_2$$? (You may assume that the force of friction between the mass $$m_1$$ and the back of the truck is negligible).