problem05_25

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

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5.25: a) At constant speed, the net force is zero, and the magnitude of the applied force must equal the magnitude of the kinetic friction force, N. 7 ) s m (9.80 kg) 00 . 6 ( ) 12 . 0 ( 2 k k k = = = = = mg μ n μ f F b) , ma f k = - F so N. 8 ) s m 80 . 9 )
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Unformatted text preview: 12 . ( s m kg)(0.180 00 . 6 ( ) ( 2 2 k k k = + = + = = = + = g a m mg ma f ma F c) Replacing 2 s m 80 . 9 = g with 2 s m 62 . 1 gives 1.2 N and 2.2 N....
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This document was uploaded on 02/04/2008.

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