9.3 PRACTICE PROBLEMS

---

1. Draw the FBDs and write the differential equations for the mechanism below. The right most shaft is fixed in a wall.

2. Draw the FBDs and write the differential equations for the mechanism below. Assume the pulleys are massless.

3. Find the polar moments of inertia of area and mass for a round cross section with known radius and mass per unit area. How are they related?