1. Monday, November 3 Review for Exam III Chapters 6, 7, 8(springs only) 9

2. Acceleration Centripetal tangential Torque = τ

3. Center of Mass Net torque of gravitational forces is zero about center of mass

4. Moment of Inertia and Newton’s 2 nd law

5. Center of Gravity (center of mass) Moment of Inertia Torque

6. Hooke’s Law

7. Momentum

8. Conservation of Momentum When is momentum conserved? Special Case: Perfectly Inelastic Collision

9. Which has the greater moment of inertia?

10. Example How long does it take the small mass to fall 1.0 m when released from rest?

11. 1.2m M1 = 35 kg M2=20kg x = ? Find x

12. The spring’s equilibrium length is 30 cm. The mass of the fish is 4.0 kg, and causes the spring to stretch to a length of 42 cm. – What is the spring constant of the spring? – If an 8.0 kg fish is suspended, what will be the length of the stretched spring?

13. Example: (pg. 282 in book)