QUESTION 3 1 poin Two ropes are used to lower a 255-kg piano a distance of 5.80 m. What is the net work done on the piano? 1830 N Ť, 1295 N 45° 60 2500 N Fa
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- A 129 ft tower is located on the side of a mountain that is inclined 19* to the horizontal. A guy wire is to be attached to the top of the tower and anchored at a point 42 ft downhill from the base of the tower. Find the shortest length of wire needed. 129 ft 42 ft 19° NOTE: The picture is NOT drawn to scale. length of guy-wire = ft5) Determine the tension developed in the three cables required to support the traffic light, which has a mass of 20 kg. Take h = 3.5 m. (Ans: FAB = 348 N; FAC= 413 N; FAD = 174 N) 6 m D 3 m B 4 m 4 m 4 m 6 m `3 m 3 m 4 m Figure 5 200Q2): Body A is weight 100 N and tied to a rigid wall using a steel cable and it is located on body B of weight 300 N which rest on a rough surface (coefficient of fraction is 0,3). If the fraction coefficient between body A and B is equal to 0.25 and the pulling force P= 600 N. calculate the tension force of the steel cable. A 530 37 B TTTTTT
- Question 2 Find the value of The reaction force at the support A. (X,XX,XXX represents the last digits number pf your IC) 4m 400 KN 10 m B 60 KN 4m 10 m. 157KN 4m 17 m Da) Draw the free-body diagrams of pulley C and of block E separately. b) Calculate the following: gridinion! the magnitude of tension forces along cables CAD and ACB, Slugmo the mass of block E, ME, mont • and the spring constant, k. patinlog.431 93 80 anil Juods insmo m (SA 1.5 ft 1 ft U D 50° 2 ft beniamos terb salsa binowB 35° C E am Sta Juoma 100.0 8.0 T.0 mao ISTOG ed ojPlease
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- A bolt is expected to break at 105 ft-lb of torque. A cheater bar is being used to tighten the bolt. The cheater bar is placed on the wrench 3 inches from the center of the bolt. The cheater bar is made of pipe that is 6.6 pounds per linear foot. The bar is 5.7 feet long. What is the lowest angle above the horizon that that the bar can be held before it exceeds the maximum expected torque?Two weights are hung over two frictionless pulleys that are connected by a wire rope to a 500 Ib horizontal block that are in between and below them. The wire rope attached to the upper left end of the block and to the left pulley is at 45 degrees with the horizontal and the wire rope that connects the upper right end of the block to the right pulley is at 30 degrees with the horizontal. If the weight on the left pulley is 50 lb, fs= 0.30 and fk = 0.20 on the surface of block what weight W on the right pulley will cause the 500 lb block to just start moving to the right? *1:39 م SuperNe l. A sulms.su.edu.om P Flag question Member ABC is supported by pin support at B and by cables attached at A and C and passing over a frictionless pulley at D. Determine the tension force in the cable AD if the tension force in the cable CD is 75 N. 160 mm C a = 120 mm 250 mm A 75 N Вeer,2013 Select one: Оа. 100 N O b. 75 N Ос.0 O d. 80 N