exam02

# exam02 - ME 274 Summer 2010 Examination No 2...

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ME 274 – Summer 2010 Name (Print) Examination No. 2 (Last) (First) July 28, 2010 Lecture Seat # INSTRUCTIONS Begin each problem in the space provided on the examination sheets. If additional space is required, use the paper provided to you. All problems are of equal value and will be graded on the basis of 20 points maximum. Please remember that in order for you to obtain maximum credit for a problem, the solution must be clearly presented, i. e.: coordinate systems used must be clearly identified. where ever appropriate, free body diagrams must be drawn. These should be drawn separately from the given figures. units must be clearly stated as part of the answer. vectors must be clearly identified with proper vector notation (e.g., v , v or v ) If the solution does not follow a logical thought process, it will be assumed in error. Prob. 1 Prob. 2 Prob. 3 Prob. 4 TOTAL

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ME 274 – Summer 2010 Name Examination No. 2 PROBLEM NO. 1 Given : System released from rest with ! = 36.87 ° . Consider the bar and the disk to be homogeneous. Find : Determine the angular velocity of the bar when = 0 . Use: m = 100 kg , L = 2 meters and R = 0.4 meters . Please clearly indicate the four steps in a neat and orderly presentation of your work. R m, L m ! smooth no slip g B A massless block B A
ME 274 – Summer 2010 Name Examination No. 2

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