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Informal sessions:

o Tu 3:30-4:20pm, RAS 218;

o Fri 4-4:50pm, ECJ 1.204.

Lecture 27: (iq23) Dynamics of Rigid body -- II

Rolling motion:

• Yo-yo
• Rolling down the incline

Torque and angular momentum:

• F=dP/dt, F=0 è Conservation of total momentum.
• torque=dL/dt, torque=0 è Conservation of total angular momentum.
• Skater: I₁w₁=I₂ w₂.

Reminders:

• Work on PQ questions in Chapter 12 and 13.
• Finish reading chapter 13.
• Work on hw 10.