ENG35S04_Exam2_soln

ENG35S04_Exam2_soln - ENG 35 - Spring 04 Holland Exam #2...

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ENG 35 - Spring 04 – Holland 1/6 Exam #2 (Two sides of an 8 1/2 x 11 sheet) Name: KEY Sec. No: Problem 1 (20 points) Problem 2 (20 points) Problem 3 (15 points) Problem 4 (15 points) TOTAL (70 points) This exam is closed book and closed notes. You may have an 8 1/2 by 11 sheet with notes on two sides. These sheets will need to be turned in with the exam. Be sure to put your name on each page.
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ENG 35 - Spring 04 – Holland 2/6 Exam #2 (Two sides of an 8 1/2 x 11 sheet) Name: KEY Sec. No: 1. A pole is fixed into the ground at A and has a 12 inch arm in the y-direction. A cable is attached to the ground along the y-axis, goes over a frictionless pulley at B and is pulled taught by 500 lb force in the –x-direction. Determine the reactions at A. (20 pts) FBD Equilibrium Equations FA A xx x =− = = 0 500 0 500 : lb + x - direction yy == 00 : A zz z = = 0 500 0 500 : lb + z - direction Ml b i n M M xA x A x () ( ) += = 0 500 12 0 6000 : lb - in CCW about +x - axis b i n M M yA y A y ( ) = 0 500 21 0 10500 : lb - in CCW about +y - axis b i n M M zA z A z =+ ( ) = 0 500 12 0 6000 : lb - in CW about +z - axis y x
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ENG35S04_Exam2_soln - ENG 35 - Spring 04 Holland Exam #2...

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