The horizontal beam in the figure weighs 150 N, and its center of gravity is at its center. Find (a) the tension in the cable and (b) the horizontal and vertical components of the force exerted on the beam at the wall.
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The horizontal beam in the figure weighs 150 N, and its center of gravity is at its center. Find (a) the tension in the cable and (b) the horizontal and vertical components of the force exerted on the beam at the wall.
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- The system in the figure is in equilibrium. A concrete block of mass 254 kg hangs from the end of the uniform strut of mass 59.7 kg. For angles -28.9° and 9-57.2%, find (a) the tension T in the cable and the (b) horizontal and (c) vertical components of the force on the strut from the hinge. Sarut z Hinge (a) Number Units (b) Number Units (c) Number i UnitsA uniform ladder 15 ft long is leaning. against a frictionless wall at an angle of 53 \deg above the horizontal. The weight of the ladder is 30 pounds. A 70 lb boy climbs 5.0 - ft up the - ladder. What is the magnitude of the friction force exerted on the ladder by the floor?A man holds a 198-N ball in his hand, with the forearm horizontal (see the figure). He can support the ball in this position because of the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 18.5 N and has a center of gravity as indicated. Find (a) the magnitude of M and the (b) magnitude and (c) direction (as a positive angle counterclockwise from horizontal) of the force applied by the upper arm bone to the forearm at the elbow joint. Upper arm bone - Flexor muscle M Elbow joint cg 0.0510 mt T0.0890 m 0.330 m-
- The horizontal beam inFig weighs 190 N, and itscenter of gravity is at its center.Find (a) the tension in the cable and(b) the horizontal and vertical componentsof the force exerted on the beamat the wall.A wooden plank with a mass of 50.968 kg is supprted by two cable at its ends. At what location should a box of mass 20.387 kg be placed for one cable to exert a force of 125 N more than the other cable? Note: the location is the distance from each cable please show full solution, figure and fbd.A ladder of weight 600 N and length 10.0 m is placed against a smooth vertical wall. A person weighing 1000 N stands on the ladder 6.0 m from the bottom as measured along the ladder. At a height of 7.0 m the ladder is on the point of slipping. Find: (a) Calculate the force exerted by the wall. (b) Calculate the normal force exerted by the floor on the ladder. (c) The force of friction between the floor and ladder. (d) Calculate the coefficient of static friction if the ladder is on the point of slipping when the person is 8.0 m up the ladder.
- In the figure, one end of a uniform beam of weight 100 N is hinged to a wall; the other end is supported by a wire that makes angles 8- 29 with both wall and beam. Find (a) the tension in the wire and the (b) horizontal anid (c) vertical components of the force of the hinge on the beam. Hinge (a) Number Units Units (b) Number Units (c) NurmiberThe figure below shows a beam of uniform density with a mass of 35.5 kg and a length t5.95 m. It is suspended from a cable at a distance d 1.20 m from its left end, while its right end is supported by a vertical column. (a) What is the tension (in N) in the cable? (b) What is the magnitude of the force (in N) that the column exerts on the right end of the beam? Need Help? Read Page 20A man holds a 179-N ball in his hand, with the forearm horizontal (see the figure). He can support the ball in this position because of the flexor muscle force , which is applied perpendicular to the forearm. The forearm weighs 20.3 N and has a center of gravity as indicated. Find (a) the magnitude of M and the (b) magnitude and (c) direction (as a positive angle counterclockwise from horizontal) of the force applied by the upper arm bone to the forearm at the elbow joint. Upper arm bone Flexor muscle M Elbow joint 0.0510 mt 0.0890 m -0.330 m- (a) Number Units (b) Number Units (c) Number Units
- Show the complete solutionTwo ladders, 4.00 m and 3.00 m long, are hinged at point A and tied together by a horizontal rope 0.90 m above the floor. The ladders weigh 600 N and 450 N, respectively, and the center of gravity of each is at its center. Assume that the floor is freshly waxed and frictionless. (a) Find the upward force at the bottom of each ladder. (b) Find the tension in the rope.A 73 kg man stands on a level bridge of length L. He is at distance L/4 from one end. The bridge is uniform and weighs 2.7 kN.What are the magnitudes of the vertical forces on the bridge from its supports at (a) the end farther from him and (b) the nearer end?