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phy131studiof15:lectures:chapter13 [2015/10/10 03:50] mdawber [Rotational Kinetic Energy] |
phy131studiof15:lectures:chapter13 [2015/10/10 03:56] mdawber [Angular Momentum] |
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The kinetic energy thus depends on the moment of inertia of the object. | The kinetic energy thus depends on the moment of inertia of the object. | ||

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+ | ===== 13.P.021 ===== | ||

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+ | ===== Hoop and Disk ===== | ||

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Suppose we release a hoop and disk from the top of a slope. They begin with the same potential energy, which one gets to the bottom of the slope first? | Suppose we release a hoop and disk from the top of a slope. They begin with the same potential energy, which one gets to the bottom of the slope first? | ||

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$\Sigma \tau=I \alpha=\frac{dL}{dt}$ | $\Sigma \tau=I \alpha=\frac{dL}{dt}$ | ||

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+ | ===== 13.P.048 ===== | ||

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===== Conservation of angular momementum ===== | ===== Conservation of angular momementum ===== |