sample_final_fa09

# sample_final_fa09 - ME 274 Fall 2009 Final Examination...

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ME 274 – Fall 2009 Name Final Examination PROBLEM NO. 1 – 20 pts Given : A thin, homogeneous bar of weight W and length L is released from rest at an angle of ! with respect to the vertical while in contact with a smooth horizontal floor at end A. Find : Determine the contact force of the floor on the bar immediately after release. Use the following parameters in your analysis: W = 100 lb , L = 2 ft and = 36.87 ° . A W, L smooth g

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Name Final Examination PROBLEM NO. 2 – 20 pts Given : A pulley (having a mass m and outer radius R) is supported by a cable-spring system, as shown. A block C (with mass M) is pinned to the pulley at O. The system is released from rest with the spring initially unstretched. Assume that the cable does not slip on the pulley. Find : Determine the angular velocity of the pulley after block C has dropped through a distance of d. Use the following parameters in your analysis: m = 20 kg , M = 30 kg , k = 500 N / m , R = 0.4 meters and d = 0.2 meters . R
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## This document was uploaded on 12/25/2011.

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sample_final_fa09 - ME 274 Fall 2009 Final Examination...

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