A uniform 1200 N beam that is 3.50 m long is suspended horizontally by two vertical wires at its ends. A small but dense 550 N weight is placed on the beam 2.00 m from one end, as shown in the figure. The tensions, A and B, in the two wires are: OA 8190 N, B = 8960 N = OA 836 N, B = 914 N OA 875 N, B = 875 N = OA 914 N, B = 836 N OA=8960 N, B = 8190 N B 2.00 m 3.50 m
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- The figure below shows a horizontal rod, of length 2.6 m, with forces acting on it. A 30 N force acts at its left end, point 0, in a direction down and to the left, 45° below horizontal. A 25 N force acts at its center, point C, in a direction up and to the right, 30° to the right of vertical. A 20 N force acts at the right end, in a direction down and to the right, 20° below horizontal. (25 N 30 45° 20° 1.3 m 10 N 2.6 m 30 N (a) What is the net torque (in N m) on the rod about an axis through O perpendicular to the page? magnitude direction counterclockwise (b) What is the net torque (in N m) on the rod about an axis through C perpendicular to the page? magnitude direction counterclockwise vA uniform 1200-N piece of medical apparatus that is 3.5 m long is suspended horizontally by two vertical wires at its ends. A small but dense 550-N weight is placed on the apparatus 2.0 m from one end, as shown in the figure. What are the tensions, A and B, in the two wires? A B 2.0 m 3.5m O A = 910 N, B = 840 N O A= 840 N, B=910N OA= 8200 N, B=9000N O A= 9000 N, B-8200 N /A hungry bear weighing 705 N walks out on a beam in an attempt to retrieve a basket of goodies hanging at the end of the beam (see the figure below). The beam is uniform, weighs 200 N, and is 5.50 m long, and it is supported by a wire at an angle of θ = 60.0°. The basket weighs 80.0 N.
- The 6.8-kg frame AC and 2.8-kg uniform slender bar AB of length lslide with negligible friction along the fixed horizontal rod under the action of the 75-N force. Calculate the tension Tin wire BC and the magnitude FA of the force exerted on the bar by the pin at A. The x-y plane is vertical. 75 N 52° 52 B Answers: T = ! N FA = ! N lle26A traffic light hangs from a pole as shown in the figure below. The uniform aluminum pole AB is 6.50 m long and has a mass of 14.0 kg. The mass of the traffic light is 20.0 kg. Determine the vertical and horizontal components of the force exerted by the pivot A on the aluminum pole. 37 3.80 m Q 150 N, 300 N O 220 N, 347 N Q 362 N, 333 N ( 410 N,328 N Q 200 N, 400 N A OOD
- 8₁ 02 9. The diagram of the leg shows the femur (1) and tibia (2). The quadriceps muscle (3) applies a force to the lower leg via a tendon (4) that is embedded with the kneecap (5). If the force applied by the muscle to the tendon is F 570 N, what is the force of the femur on the kneecap, if the leg is in equilibrium? A simplified model of the leg is shown next to the diagram. The leg bones are represented by two beams attached by a pin. The tendon is modelled by a rope and the kneecap acts like a pulley. The tendon above the kneecap makes an angle 8, = 38° with respect to the vertical, and the portion of the tendon below the kneecap makes an angle of 6₂ = 10° with respect to the vertical. Enter the x component, followed by the y component. Answer 1 of 2: Answer 2 of 2: Submit All AnswersA hungry bear weighing 730 N walks out on a beam in an attempt to retrieve a basket of goodies hanging at the end of the beam (see the figure below). The beam is uniform, weighs 200 N, and is 7.00 m long, and it is supported by a wire at an angle of θ = 60.0°. The basket weighs 80.0 N. A horizontal plank is attached at the left end to a vertical wall. A rod with a pulley at the right end extends a distance x horizontally to the right from the wall above the plank. A cable connected to the wall just above the rod goes around the pulley then down and right to the end of the plank, making an acute angle θ with the plank. A basket of goodies hangs down from the right end of the plank and a bear stands on the plank below the rod a distance x from the wall. (a) Draw a force diagram for the beam. (Submit a file with a maximum size of 1 MB.) This answer has not been graded yet. (b) When the bear is at x = 1.10 m, find the tension in the wire supporting the beam. NWhen the bear is at x…A car is stuck in the mud. A tow truck pulls on the car with the arrangement shown. The tow cable is under a tension of 2 500 N and pulls downward and to the left on the pin at its upper end. The light pin is held in equilibrium by forces exerted by the two bars A and B. Each bar is a strut; that is, each is a bar whose weight is small compared to the forces it exerts and which exerts forces only through hinge pins at its ends. Each strut exerts a force directed parallel to its length. Determine the force of tensionor compression in each strut. Proceed as follows. Make a guess as to which way (pushing or pulling) each force acts on the top pin. Draw a free-body diagram of the pin. Use the condition for equilibrium of the pin to translate the free-body diagram into equations. From the equations calculate the forces exerted by struts A and B. If you obtain a positive answer, you correctly guessed the direction of the force. A negative answer means that the direction should be reversed,…
- A uniform 1200 N beam that is 3.50 m long is suspended horizontally by two vertical wires at its ends. A small but dense 550 N weight is placed on the beam 2.00 m from one end, as shown in the figure. The tensions, A and B, in the two wires are: B 2.00 m - 3.50 m A A = 914 N, B = 836 N (B) A = 8190 N, B = 8960 N A = 836 N, B = 914 N A = 8960 N, B = 8190 NThe pole has insignificant weight.Thehorizontal and vertical components of the force of the hinge are ______ and _____ respectively Choices: 800 N, 800N 800 N, 600N 0 N, 800N 600 N, 800N 1200 N,800N Show complete solution and free body diagramAs shown below, a sign weighing 162 N is hanging (via a wire) from a uniform 218 N beam of length L. Additionally, the beam is attached to a cable that makes an angle 0 (0 = 57°) with the beam. 0.2 L 0.3 L 101 Determine the tension in the cable and the magnitude & direction of the force the hinge (the orange circle) exerts on the beam. Cable tension = 1589.42 N Hinge force = Direction of hinge force = in quadrant - Choose quadrant -- ✓ ° relative to the vertical