Any questions??

---

Four-step plan:

Step 1 – FBD: Draw individual FBDs of the bar and the block.

Step 2 – Kinetics: Using your FBDs above, write down the Newton/Euler equations for the block and the bar. Be careful with your moment equation for the bar – since the bar does not have a fixed point, you need to use the center of mass of the bar for your moment equation.

Step 3 – Kinematics: You need to relate the acceleration of the block to the acceleration of the center of mass, G, of the bar through the rigid body acceleration equation:
a_G = a_O + α_bar x r_G/O – ω_bar² r_G/O 

Step 4 – Solve