problem10_71

University Physics with Modern Physics with Mastering Physics (11th Edition)

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10.71: a) Because there is no vertical motion, the tension is just the weight of the hoop: ( 29 ( 29 N 76 . 1 kg N 8 . 9 kg 180 . 0 = = = Mg T b) Use . find to α α τ I = The torque is , / / so , 2 MR Mg MR T MR RT I RT α RT = = = = ( 29 ( 29 2 2 rad/s 5 . 122 m 08 . 0 s m 8 . 9 so = = = α R g c)
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Unformatted text preview: s m 8 . 9 = = R a d) T would be unchanged because the mass M is the same, a and would be twice as great because I is now . 2 2 1 MR...
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