a 300n girl and an 400n boy stand on a 16m platform supported by posts A and B. The platform itself weighs 200N. What are the forces exerted by the supports on the platform?
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a 300n girl and an 400n boy stand on a 16m platform supported by posts A and B. The platform itself weighs 200N. What are the forces exerted by the supports on the platform?
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- The bent rod of negligible weight is supported by the ball-and-socket joint at B and the cables attached to points A and C. Find the forces in the cables and the magnitude of the reaction at B. Dimensions Figure P.5.39The tongs shown are designed for lifting blocks of ice. If the weight of the ice block is W, find the horizontal force between the tongs and the ice block at C and D. Neglect the weights of the tongs.A uniform horizontal beam 5.00 m long and weighing 350 N is attached to a wall by a pin connection that allows the beam to rotate. Its far end is supported by a cable that makes an angle of 50 with the horizontal. If a person weighing 550 N stands 1.50 m from the wall, find the magnitude of the tension T in the cable and the force R exerted by the wall on the beam.
- The input piston and output plunger of a hydraulic car lift at the same level, as shown in the drawing. The cross-sectional area of the input piston is 12cm^2, while that of the output plunger is 1200cm^2. The force F1 is applied to the input piston had a magnitude of 150 N. What is the weight W of the car? Neglect the weight of the piston and plunger.A beam 3m long has a weight of 200N at one end and another weight of 80N at the other end. The weight of the beam itself is negligible. (a) Design the appropriate force arrangement or system (b) Find the balance point of the beam.A non-uniform bar rests across two supports that are 20 ft apart. When loads of 200 lb, 4 ft from end A and 150 lb, 6 ft from end B, are on the bar, end A supports 233 lb and end B supports 197 lb. Find the weight of the bar and the position of the center of gravity.
- 3. A 550 kg drawbridge has a hinge at one end and a cable attached to the other. It is stuck in a position where it makes an angle of 30° with the vertical. The cable pulling on the far end of the bridge is horizontal. Find the tension in the cable as well as the vertical and horizontal components of force from the hinge.The second photo has background info to help solve the practice problemA 50 kg pole extends up a wall, making a 60° angle with the wall. The pole is supported by acable attached 3/4 of the way along the pole. This support cable is perpendicular to the wall.A 10 kg sign hangs from the end of the pole. The pole’s center of mass is 1/3 of the way fromthe wall to the end of the pole. (a) What is the tension in the cable?(b) What are the x and y components of the force the wall exerts on the pole?You must include an extended free body diagram showing all forces acting on the pole. Labelthe location on the pole you will use a reference for measuring distances (the “axis of rotation”) at the point where the pole touches the wall. Thank you!
- A uniform horizontal beam with a length of 12.00 m and a weight of 400 N is attached to a wall by a pin connection. Its far end is supported by a cable that makes an angle of 60.0° with the horizontal. If a 800-N person stands 4.00 m from the wall, find the tension in the cable, as well as the magnitude and direction of the force exerted by the wall on the beamA wracking ball is suspended below two cables each at an angle with the horizontal. The left cable has tension T1 and angle 37 degrees with the horizontal. The right cable has tension T2 and angle 22 degrees with the horizontal. The Wracking ball has mass 180 kg. Find the magnitude of tension T2.I need the answer as soon as possible