problem10_63

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

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10.63: The net torque on the pulley is TR , where T is the tension in the string, and I TR α = . The net force on the block down the ramp is . ) cos (sin k ma T β μ β mg = - - The acceleration of the block and the angular acceleration of the pulley are related by . α R α = a) Multiplying the first of these relations by R I and eliminating α in terms of a,
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Unformatted text preview: and then adding to the second to eliminate T gives ( 29 ( 29 ( 29 , / 1 cos sin / cos sin 2 k 2 k mR I g R I m mg a +-= +-= and substitution of numerical values given 1.12 . m/s 2 b) Substitution of this result into either of the above expressions involving the tension gives T = 14.0 N....
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This document was uploaded on 02/04/2008.

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