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Problem 4. If the force F is 30 lbs, the spring constant k is 100 lbs/ft, and L is 5 ft, determine the angle

Problem 4. If the force F is 30 lbs, the spring constant k is 100 lbs/ft, and L is 5 ft, determine the angle for equilibrium. Note that the spring is unstretched when 0 = 0 degrees. For credit, solve this problem with the virtual work method. (15 points total). B k LL

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