Quiz 8: Rotational Dynamics 8.01 Week 11D3Next Reading Assignment: W12D1 Young and Freedman: 11.1-11.3, 10.3-10.6 2Concept Question: Constants of the Motion A bowling ball is initially thrown down an alley with an initial speed v0, and it slides without rolling but due to friction it begins to roll until it rolls without slipping. What quantities are constant before it rolls without slipping? 1. Energy. 2. Angular momentum about the center of mass. 3. Angular momentum about a fixed point on the ground. 4. Three of the above. 5. Two of the above. 6. One of the above. 7. None of the above.Worked Example: Bowling Ball – Method of Conservation of Angular Momentum A bowling ball of mass m and radius R is initially thrown down an alley with an initial speed v0, and it slides without rolling but due to friction it begins to roll. The moment of inertia of the ball about its center of mass is I = (2/5)mR2. Using conservation of angular momentum, find the speed vf of the bowling ball when it just start to roll without slipping?
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