Cable S is tethered to the roadway at angle θ = 57.0 ∘ . Find the change in the length of cable S when the tractor trailer causes the roadway to drop 0.4 cm . Assume that cable S remains tethered to the roadway at angle 57.0 ∘ .
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- The 110-lb traffic light is suspended from two identical cables AB and BC, each weighing 0.80 lb/ft. If the maximum allowable horizontal force exerted by a cable on a vertical post is 170 lb, determine the shortest possible length of each cable and the corresponding vertical distance h.The wheel loads on a car are 300 lb and 100 lb at rear and front respectively. Determine the distance X, so that the reaction of the beam at A is twice as great as of B. The weight of the beam is 500 lb.The motion of a material point making curvilinear motion in the plane is defined by the relations r = 2b cos ωt and θ = ωt. Where b and ω are constant values. find the radius of curvature of its orbit at the moment t = 0.
- Find the force F on the bottom of the tank if : K=1.5 m , H= 6 m , D=5 m.The throttle-control lever OA rotates in the range 0≤θ≤90∘. An internal torsional return spring exerts a restoring moment about O given by M = K(θ+π/4), where K = 670 N·mm/rad and θ is in radians. Determine and plot as a function of θ the tension T required to make the net moment about O zero. The effects of the radius of the pulley at B are negligible. After you have completed the plot, answer the questions. Assume r = 60 mm, d = 150 mm.A two degrees of freedom mass spring system is fixed at one end, where independent masses can move only in the vertical direction. Considering the system as finite elements, determine the vertical displacement for each mass. Also draw the free body diagram of this system. Use 'X' KN/m as the stiffness value for all the springs and 'Y' Kg as the value for all masses. Where, 'X'= (63) 'Y'= (93)
- The bent rod is supported by a smooth surface at B and by a collar at A, which is fixed to the rod and is free to slide over the fixed inclined rod. Suppose that F = 160 lb and M = 400 lb⋅ft . Determine the magnitude of the reaction force on the rod at B and the magnitude of the reaction force on the rod at A. Determine the moment of reaction on the rod at A.Cable AB is 0.5 m long. The unextended length of the spring is 0.4 m. When the 50-kg mass is suspended at B, the length of the spring increases to 0.45 m. What is the constant k of the spring?Determine the magnitude of the net impulse exerted by the hockey stick on the puck.
- Vectors A, B and C are defined as follows: A = 2.5i + 3.6j – 4.3k; B = 2.5i – 5.6j + 2.2k; C = 8.4i + 8.5k Determine A·(B×C) The light boom AB is attached to a vertical wall by a ball and socket joint at A and supported by two cables at B. A force P is applied at B where P = 11i - 10j kN.Note that the reaction force at A acts along the boom because it is a two-force member. Calculate the magnitude of the reaction force at A in kN Determine the magnitude of the moment of P about the origin (point O) in Nm.1: The cable AB prevents bar OA from rotating clockwise about O. if the cable tension is 750N, determine the n- and t component - as shown in fig 1The string attached to the kite weighs 0.4 oz/ft. If the tension in the string is 2.8 lb at O and 3.2 lb at B, determine the length s of the string and the height H of the kite.