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2010S_Test1_sol - EM 306 Statics TEST 1 Spring 2010 Landis...

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EM 306 – Statics TEST 1 Spring 2010 - Landis Name ___________________________________ EID ___________________________________ Unique Number __________________________ Instructions: All problems require correctly drawn and labeled free body diagrams. Show all of your work. Place a box around your final answers and include units. Problem 1. Draw a complete and correctly labeled free body diagram of the arm. Determine the moment M required to maintain equilibrium of the arm as a function of the angle θ . The spring is unstretched when A is coincident with A . Hint: determine the x and y coordinates of point A in terms of θ to aid in the analysis of the geometry. (20 points) Problem 2. Assume that the support at E is able to roll in the horizontal direction. Determine the axial forces in each member to the left of CG and CG . Indicate whether each is in tension or compression. (10 points)
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EM 306 – Statics TEST 1 Spring 2010 - Landis Problem 3. Determine the clamping force on the branch due to the pruning tool. Neglect the force due to the spring at C . (20 points)
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