Problem statementSolution video |

**DISCUSSION THREAD**

**Discussion and hints:**

Recall the following *f**our-step plan* outline in the lecture book and discussed in lecture:

**Step 1: FBDs**

Draw *individual* free body diagrams for the bar and the disk.

* Step 2: Kinetics (Newton/Euler)*Write down the Newton/Euler equations for the disk and for the bar based on your FBDs above.

**Step 3: Kinematics**

You need to use the rigid body acceleration equations to relate the accelerations of O and the center of mass of the bar, G, through the angular acceleration of the bar. Also, you need to relate the acceleration of O to the angular acceleration of the disk.

**Step 4: Solve**

Solve your equations for the angular accelerations of the bar and the disk.

Any questions?