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Problem 2: (30 points) This problem consists of three parts and is worth 30 points.  The crane shown is subjected to three coplanar forces.

(2a) Calculate the magnitude of the resultant force and the angle it makes with the positive x-axis. Enter the angle in the box below. 

Problem 3: (15 points) This problem consists of two parts and is worth 15 points.  The given uniform bar with end rollers weighs 60 lb and is supported by the horizontal and vertical surfaces and by the wire AC.

(1a) Determine the force in members AE and AB using the method of joints. Clearly indicate whether each member is in tension or in compression in your supporting calculations. Enter the force in member AE in the box below. 

Problem 2: (30 points) This problem consists of three parts and is worth 30 points.  The crane shown is subjected to three coplanar forces.

Problem 2: (30 points) This problem consists of three parts and is worth 30 points.  The crane shown is subjected to three coplanar forces.

Problem 3: (15 points) This problem consists of two parts and is worth 15 points.  The given uniform bar with end rollers weighs 60 lb and is supported by the horizontal and vertical surfaces and by the wire AC.

Problem 1: (25 points) This problem consists of two parts and is worth 25 points.  In the figure below, assume F1 = 3000 lb, F2 = 4500 lb, a = 4 ft, b = 6 ft, c = 2.5 ft, and d = 3.5 ft.

(1a) Determine the force in members AE and AB using the method of joints. Clearly indicate whether each member is in tension or in compression in your supporting calculations. Enter the force in member AE in the box below. 

Ben has several exams coming in a week. He is under a lot of stress. Which hormone is likely to increase?