meC85-sp09-mt1-Zohdi-exam

meC85-sp09-mt1-Zohdi-exam - 2 009M IDTERM 1 F OR M E 8 5/CE...

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2009 MIDTERM 1 FOR ME 85/CE 30 SECTION (Zohdi) (NO CALCULATORS/10O POINTS) (BE NEAT and turn in this test sheet in with your work!) NAME:
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PROBLEM 1 (20 points) (x5,Y5,25) F=ai+bj+ck (x3,Y3,23) (x4,Y4,z4) (x2,Y2,22) (x1,Y1,211 ________+ X Figure 1: Problem 1. Consider the cable and rod system in Figure 1. (a) Neatly draw a freebody diagram for each cable and the rod. F is a vector. (b) Sum the forces and moments for the rod, resulting in a system of 6 equations and 6 unknowns. In these equations, there should only be these 6 unknowns. (Do not solue the equati,ons.)
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PROBLEM 2 (30 points) -f ltt I I I Figure 2: Problem 2 Consider the truss system in Figure 2. (a) Neatly draw a freebody diagram for the entire system (do not break it up, yet). (b) Determine the reaction forces at the supports. (c) Draw the freebody diagram for each joint.
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meC85-sp09-mt1-Zohdi-exam - 2 009M IDTERM 1 F OR M E 8 5/CE...

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