4. Bar AB is supported by a pinned support at A and link BD. Determine the reactions at A and the force applied by link

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4 Bar Ab Is Supported By A Pinned Support At A And Link Bd Determine The Reactions At A And The Force Applied By Link 1 (300.38 KiB) Viewed 44 times

YOU MUST DRAW A FREE BODY DIAGRAM FOR EVERY ONE OF THESEPROBLEMS. YourFBD should include all the forces and/or moments that act on thebody, and should include anyknown dimensions, slopes, angles, etc.Remember also that for every reaction that you find, your answershould include that reaction’smagnitude, and an arrow indicating in which direction that reactionmust act to maintain equilibriumof the body.
4. Bar AB is supported by a pinned support at A and link BD. Determine the reactions at A and the force applied by link BD required to keep bar AB in equilibrium. (Hint: You should draw a FBD of bar AB.) 6. Bar ABC is supported by roller supports at A and C, and by cable BD. Determine the reactions at A and C, and the force in cable BD. 7. Bar ABCD is supported by a fixed support at D. Also, the weight of the cylinder hanging at E is 94 lb. Determine the reactions at fixed support D. 126 N 5. Bent bar ACD is supported by a pinned support at C and by cable ABD, which wraps around frictionless pulley B. A 246-lb force is applied at the "elbow" of the bar as shown. Determine the reactions at C and the magnitude of the tensile force in cable ABD. (Don't forget what you already know about cables going over frictionless pulleys. Also, FYI, the most efficient thing to do is to draw a FBD of bent bar ACD.) -212 mm- 100 mm 126 N B 100 mm-100 mm-100 mm- 642 N 150 mm A 55 lb 6 ft B A 300 mm B 500 mm D -5m-/- ・5"-5" 575 N 8 ft C 72 lb 100 mm STORIA D 6 ft- D 114 mm 90° 0-500 10" 246 lb D 320 mm W E