ENES102_S08_Final_frames_machines

ENES102_S08_Final_fr - Name Section Problem#1(20 points The frame is used to support a load of sand that weighs 70 lb The sand hangs from a cable

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Name: _____________________________ Section: ____________ Problem #1 (20 points): The frame is used to support a load of sand that weighs 70 lb. The sand hangs from a cable that passes around a frictionless pulley (radius = 0.5 ft) at D and is anchored to the wall. The structure is rigidly attached to the wall at C, and pinned connections exist at joints A, B, D, and E. (a) Find the reactions at C and the tension in the cable. (b) Determine the forces at A and the force(s) in link BE. Draw ALL FBD’s necessary to solve this problem.
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_____________________________ Section: ____________ Problem #2 (20 points): Compound-lever snips are being used to cut a circular steel wire. The snips are composed of four parts: 1) jaw AB, 2) link BC, 3) handle CD, and 4) jaw/handle AD. Points A, B, C, and D are pinned connections. Note that point C is not connected to the upper handle, and point B is not connected to the lower handle. A gripping force of 150 N is applied to each handle. (a)
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This note was uploaded on 05/19/2008 for the course ENES 102 taught by Professor Biegel during the Spring '07 term at Maryland.

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ENES102_S08_Final_fr - Name Section Problem#1(20 points The frame is used to support a load of sand that weighs 70 lb The sand hangs from a cable

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