# Pulleys

Use this applet to generate—and animate—questions involving masses on a pulley. In this applet, you can adjust the masses of the particles, (but note that the mass of $$P$$ must be greater than the mass of $$Q$$), and you can also adjust the initial heights of the two particles. Clicking Animate reveals the following:

• the motion of the particles
• the tension in the string
• the time it takes for $$P$$ to hit the ground
• the maximum height reached by particle $$Q$$