47. (a) We apply conservation of angular momentum: I1ω1+ I22= (I1+ I2). The angular speed after coupling is therefore ()22112 2123.3kg m450 rev min6.6kg m900 rev min3.3kg m6.6kg m750 rev min.IIωω⋅+⋅+==+⋅+⋅=(b) In this case, we obtain 3.3 kg m450 rev/min6.6 kg m900 rev/min3.3 kg m6.6 kg m450 rev min
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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.