problem09_30

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

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9.30: a) 2 m 200 . 0 s m 0 . 10 s rad 0 . 50 2 tan - = = = - r a α b) At s m 0 . 50 s, 00 . 3 = = v t and s rad 250 200 . 0 s m 0 . 50 = = = r v ω and at , 0 = t ) s m 0 . 10 ( s m 0 . 50 2 - + = v , s m 80.0 s) 00 . 3 0 ( = - so . s rad 400 = ω c) s) 00 . 3 )( s rad 325 ( av = t ω e rev. 155 rad 975 = = d) . s m 40 . 1 m) 200 . 0 )( s m (9.80 2 rad = = = r a v This speed will be reached at time s 86 . 7 at or s, 00
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