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Unformatted text preview: 93. The initial angular momentum of the system is zero. The final angular momentum of the girlplusmerrygoround is (I + MR2) ω which we will take to be positive. The final angular momentum we associate with the thrown rock is negative: –mRv, where v is the speed (positive, by definition) of the rock relative to the ground. (a) Angular momentum conservation leads to 0 = I + MR 2 ω − mRv (b) The girl’s linear speed is given by Eq. 1018: Rω = mvR 2 . I + MR 2 c h ω= mRv . I + MR 2 ...
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics, Angular Momentum, Momentum

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