The right support of a cable is located 45 m below the left support. The horizontal distance between supports is 250 m. The lowest point on the cable is 15 m below the right support. If the maximum tension in the cable result- ing from a uniformly distributed load w along the hori- zontal is 850 kN, determine The length of the cable.
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- A uniform horizontal strut weighs 400.0 N. One end of the strut is attached to a hinged support the wall and the other end of the strut is attached to a sign that weighs 200.0 N The strut is also supported by a cable attached between the end of the strut and the wall. Assuming that the entire weight of the sign is attached at the very end of the s find the tension in the cable and the force at the hinge of the strut.When tightening a bolt, you push perpendicularly on a wrench with a force of 165N at a distance of 0.140m from the center of the bolt. How much torque are you exerting relative to the center of the bolt?Check Your Understanding A 2.0-m-long wire stretches 1.0 mm when subjected to a load. What is the tensile strain in the wire?
- Check Your Understanding Find the compressive stress and strain at the base of Nelson’s column.An aluminium (=2.7g/cm3) wire is suspended from the ceiling and hangs vertically. How long must the wire be before the stress at its upper end reaches the proportionality limit, which is 8.0107N/m2 ?A uniform drawbridge must be held at a 37° angle abovethe horizontal to allow ships to pass underneath. The drawbridge weighs45,000 N and is 14.0 m long. A cable is connected 3.5 m from thehinge where the bridge pivots (measured along the bridge) and pullshorizontally on the bridge to hold it in place. What is the tension in the cable?
- A box with mass 178kg is supported by the cable system at B. Chord AB has a length of 1.2m and the force that develops in the chord is 3130N The horisontal distance between points A and C is 1.7m. Determine the force that develops in chord BC and the vertical height y and complete parts (a) and (b) below.A cable of 5 N/m hangs on two supports at thesame height. The span is 100 m and the sag is25 m. (a) What is the force in the cable at itslowest point? (b) What is the length of the cable?A uniform drawbridge must be held at a 37° angle abovethe horizontal to allow ships to pass underneath. The drawbridge weighs45,000 N and is 14.0 m long. A cable is connected 3.5 m from thehinge where the bridge pivots (measured along the bridge) and pullshorizontally on the bridge to hold it in place. Find the magnitude and direction of the force the hinge exerts on the bridge.
- A uniform drawbridge must be held at a 38o angle above the horizontal to allow ships to pass underneath. The drawbridge weights 55000 N and is 15.0 m long. A cable is connected 3.5 m from the hinge where the bridge pivots (measured along the bridge) and pulls horizontally on the bridge to hold it in place. What is the tension in the cable? Find the magnitude and direction of the force the hinge exerts on the bridge. If the cable suddenly breaks, what is the magnitude of the angular acceleration of the drawbridge just after the cable breaks? What is the angular speed of the drawbridge as it becomes horizontal? What is the velocity of the drawbridge, just before it “hits” (i.e. goes horizontal)?A 1260 N uniform beam is attached to a vertical wall at one end and supported by a cable on th other end. A 1960 N crate hangs from the far end of the beam. Using the info on the diagram find the following: a) Magnitude of the tensiossnj on the cable b) the horizontal components of the varce that the wallexerts on the beam c) the vertical components of the force that the wall exerts on th eleft end of the beanConsider a rigid steel beam of length L = 13 m and mass mb = 383 kg resting on two supports, one at each end. A worker of mass mw = 68 kg sits on the beam at a distance x from support A. Refer to the figure, though note that it is not drawn to scale. 1.) the force exerted on on the beam by support A is found to be 2180 N as wht distance x in meters from support A is the worker sitting now?