565_Dynamics 11ed Manual

565_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 17 Solution: (a) System as a whole W B r i W S g k A 2 α W B g r i r i () + = W B r i g W B r i 2 W S k A 2 + = 0.826 rad s 2 = ωα t 1 = ω 2.477 rad s = (b) Parts separately Guesses T 1lb = 1 rad s 2 = Given Tr i W S g k A 2 = TW B W B g r i = T Find T , = T 4.808 lb = 0.826 rad s 2 = t 1 = 2.477 rad s = Problem 17-81 A boy of mass m b sits on top of the large wheel which has mass m w and a radius of gyration k G . If the boy essentially starts from rest at θ = 0 ° , and the wheel begins to rotate freely, determine the angle at which the boy begins to slip. The coefficient of static friction between the wheel and the boy
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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