HW1 - HOMEWORK PROBLEMS Week 1: Due Friday 16 September 1....

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HOMEWORK PROBLEMS Week 1: Due Friday 16 September 1. Find the magnitude of the resultant of the two forces in Figure 1 and its direction measured counterclockwise from the x -direction. 250 N 400 N x y 60 o 45 o Figure 1 2. Two cables with known tensions 20 kN and 45 kN are attached to the top of the plon AB in Figure 2. A third cable BC is used as a guy wire. Find the tension in BC , knowing that the resultant force applied to the end B of the pylon by the three cables must be vertical. 15 o 25 o 20 kN 45 kN A B C 32 m 14 m Figure 2 1
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3. The hinged plate in Figure 3 is supported by the cord AB . If the tension in the cord is 340 lb, express the force F that it exerts on the plate as a Cartesian vector. Also, find the length of the cord. A B x y z 8 9 6 all dimensions in feet Figure 3 2
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In Figure 4, ADB is a straight line and the length AD = 4 m. Find the angle A ˆ DC between the lines DA and DC . A
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This note was uploaded on 10/05/2011 for the course MECHENG 211 taught by Professor ? during the Fall '07 term at University of Michigan.

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HW1 - HOMEWORK PROBLEMS Week 1: Due Friday 16 September 1....

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