A uniform 1450 kg beam that is 18 m long is balanced on two vertical support beams at either end of the beam (see figure 9-8). A crate which weighs 520 kg is positioned 4.0 m from the first support beam. Calculate the force on each of the vertical support beams.
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- A uniform rod AB of weight 500 N and length 4.0 m is supported at two points P and Q as shown below. AP = QB = 0.80 m. A man of weight 800 N is walking from Q to B. Find the maximum %3D %3D distance x from Q the man can walk before the rod topples about Q. P Q A 1 -| × |- O 0.4 m O 0.8 m O 0.75 m O 0.6 mHi I needed help with this question. As shown in the figure below, a uniform beam is supported by a cable at one end and the force of friction at the other end. The cable makes an angle of ? = 30°, the length of the beam is L = 2.00 m, the coefficient of static friction between the wall and the beam is ?s = 0.600 and the weight of the beam is represented by w. Determine the minimum distance x from point A at which an additional weight 2w (twice the weight of the rod) can be hung without causing the rod to slip at point A. X=?B-3 Jae, whose mass is 65.0kg is standing Im from the end of a uniform diving board 8m long. The diving board is supported at point 'A' by a pin and at point B by a frictionless wedge as shown on the figure. The diving board has a mass of 100kg. Jaer A Find the magnitude and direction of the force of the supports on the board at points 'A' and B. Imk 2m 5m Apply the static equilibrium conditions to the Jae+beam system. 99+ 團 op
- 8. A uniform beam, length = 12 m, wt = 800 N, is hinged at the wall and makes an angle of 30° to the horizontal. A wire connected to the beam 2 meters from its end makes an angle of 45° to the beam. a) What is the tension in the wire? b) What is the vertical component of the force of the hinge and c) What is the horizontal component of the force of the hinge? 45 30Two children of mass 21 kg and 26 kg sit balanced on a seesaw with the pivot point located at the center of the seesaw. If the children are separated by a distance of 2 m, at what distance from the pivot point is the small child sitting in order to maintain the balance? mA 25-ft crane supported at its lower end by a pin is elevated by a horizontal cable. A 250-lb load is suspended through the cable. The center of gravity of the crane is 10 ft from the pin, and the crane weighs 200 lb. Hint: You don't have to convert the unit since they cancel out on both sides. 25. Find the tension in the cable. T $25016 26. Find the total force acting on the pin. y 27. Find the direction of the force acting on the pin, o = ? 60⁰° W(2001b)
- R8-7. The uniform 50-lb beam is supported by the rope that is attached to the end of the beam, wraps over the rough peg, and is then connected to the 100-lb block. If the coefficient of static friction between the beam and the block, and between the rope and the peg, is us = 0.4, determine the maximum distance that the block can be placed from A and still remain in equilibrium. Assume the block will not tip. 1 1 ft 10 ft- Prob. R8-7 المسوحة فولا CamSearerThe 600-kg uniform I-beam supports the load shown. Determine the reactions at the supports. Answers: Ax Ay = = By = p -7.5 m- +4.5 m 285 kg N N N BA painter leans a ladder against a wall at an angle of 60˚ to the ground. (Assume the ladder is uniform and the center of mass of the ladder is located at the middle of the ladder.) The ladder is 3.00m long and has a mass of 10.0kg. The person has a mass of 90.0kg. How far up the ladder can the painter climb before it slips if the coefficient of friction is 0.45?
- A horizontal 8 kg plank is 3.0 m in length and has its center of mass at the geometrical center. A 2 kg mass is placed 1.0 m from one end and the plank is supported from the ends. Calculate the forces of support. 1.0 m 2 kg 3.0 m1. A 80.0-N board 10.0 m long rests on two supports, each 1.00 m from the end of the board. A 300-N block is placed on the board 4.00 m from the right end. Find the force exerted by each support on the board.