The strongback or lifting beam is used for materials handling. The suspended load has a weight of 2 kN and a center of gravity of G. The lifting bridle has two legs that are positioned at 45°, as shown in (Figure 1). Suppose that a = 0.22 m. Figure 1 of 1 3 m 3 m 45° 45 F
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- A 1.5 kg block is connected by a rope across a 50-cm-diameter, 2.0 kg pulley, as shown. There is no friction in the axle, but there is friction between the rope and the pulley; the rope doesn’t slip. The weight is accelerating upward at 1.2 m/s2. What is the tension in the rope on the right side of the pulley?A gymnast rises onto her toes, as shown in the picture on the right. The floor pushes up on the ball of her foot with a force of N=313 N. If 0=56.0°, what are FH the forces in her heel (TH) and ankle joint (T), and what is the angle o? Answers: TH=481 N; T,=761 N; b=20.7° N, 0. 4.25 cm 9.66 cm 5.A 20 kg dog stands on a 40 kg platform that is supported by two ropes. One rope is attached to the right edge of the platform and the other is attached 50 cm from the left edge of the platform. The dog sits 50 cm from the right edge of the platform. A 5.0 kg cat jumps up, but is wary of the dog abs stays all the way on the left edge. The platform is 2.0 m long. What is the tension in each rope?
- A 10 m long board has a mass of 7 kg. The left end of the board is against a wall and it sticks straight out like a boom. A rope is tied 1 m from the right end of the board and makes a 44 degree angle with the boom. A 25 kg box hangs 3 m from the right end. Find the tension in the rope.A uniform plank of length 2.00 m and mass 27.5 kg is supported by three ropes, as indicated by the blue vectors in the figure below in each rope when a 725-N person is d = 0.500 m from the left end. magnitude of T, N magnitude of T, N magnitude of T, N 40.0° -2.00 mConsider a pulley system of the type shown in the figure above. Suppose that the upper pulley has no mass and the lower two pulleys have a total mass of 9.1 kg; the block attached to the lower pulleys represents a car engine of mass 115kg . a) What is the tension T in the rope? Assume that all sloped segments of the rope are vertical. b) What force does the ceiling exert on the upper pulley, assuming you pull straight up on the rope?
- The beam and the cable (with a frictionless pulley at D) support an 80 kg load at C. In a FBD of only the beam, there are how many unknowns? What are they? A 2 m- -2 m -1.5 m3: #3 4. A 115 kg scaffold is 6.60 m long. It is hanging with two wires, one from each end. A 600 kg box sits 1.70 m from the left end. What is the tension in the right hand side wire?(g = 9.8 m/s²) X 4929 Newtons E D 80 F3 C 5. An object weighing 255 N is supported by a uniform 135 N horizontal beam as shown in the figure. The length of the 4 R F F4 V do 50 % T F5 G ^ 6 B tv MacBook Air Y H & 7 N AA F7 U J * 00 8 M DII F8 1 K DD F9 О F10 P 10 zoom C { + ISOIT P by m 04 M vamies or roe puffer F12 delete 1 EL