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- The system shown in the figure has a weight of 2928 N whose weight acts at point G shown in the figure. Determine the vertical component Ay acting on the pin at A. Do not use negative numbers in the answer.A clutch is activated by ten helical springs symmetrically a spaced. Each spring consists of 10 turns of steel wire 1/8” diameter and has an outside diameter of 1.25”. Determine the load exerted against the clutch plate by a contraction of 2 in. in the spring. Use G = 12 x 10^6 psi.The uniform bar AB weighing 240 lb is mounted as shown in the figure upon a carriage weighing 480 lb. The center of gravity of the carriage is at C midway between the wheels. If P = 180 lb and there is no frictional resistance at the wheels, find the value of R1
- Question 3) The position of the head and neck and the forces acting on the head are shown in the figure. The center of gravity of the head of mass m=8 kg is located at point C. The joint reaction force of FJ=147 N, which makes an angle of α= 42° with the vertical from the point B, is acting on the skull by the neck extensor muscles. The center of the atlantooccipital joint is located at point B. For this flexion position of the head, FM neck muscle force, which makes an angle of γ with the horizontal from the A point, is effective. (Take the gravitational acceleration g as 9.81 m/s2). Accordingly; a) Calculate the angle γ of the FM muscle strength with the horizontal. b) Calculate the FM muscle strength. (Write your result in N.) AnswerA uniform beam that 10-m long is being supported by two men, one man at each end. The weight of the beam. Is 100-N. If the first man supporting at the right side exert twice as much as the second man on the left, where must a 50-N motor be placed (measured from the first man) on top of the beam? Show complete solution.Question 3) The position of the head and neck and the forces acting on the head are shown in the figure. The center of gravity of the head of mass m=8 kg is located at point C. Neck muscle strength of FM=130 N, which makes an angle of γ=65° with the vertical from the B point to the skull, is affected by the neck extensor muscles. The center of the atlantooccipital joint is located at point B. For this flexion position of the head, the FJ joint reaction force, which makes an α angle with the horizontal from point A, acts. (Take the gravitational acceleration g as 9.81 m/s2). Accordingly; a) Calculate the angle α of the FJ joint reaction force with the horizontal. Response b) Calculate the FJ joint reaction force. (Write your result in N.) Answer
- Force P is applied as shown on the 13.5 mm thick plate. P = 100 kN. Holes are oversized causing all rivets to always proportionately react to load applied on the plate. 1. Which of the following most nearly gives the force in rivets if P is applied at the centroid of four(rivets)? a. 50 kN b. 30 kN c. 25 kN d. 40 kN 2. Which of the following most nearly gives the force in rivets if only moment equals P times e is applied at the centroid of four(rivets)? a. 12.567 kN b. 10.451 kN c. 32.672 kN d. 17.678 kN 3. Which of the following most nearly gives the maximum force in rivets due to combined effect of P and torque? a. 42.28 kN b. 40.93 kN c. 39.53 kN d. 37.34 kN 4. Considering shearing in bolts, what is the minimum required diameter if allowable shearing stress in bolts is Fv/2, Fv = 372 MPa a. 27.34 mm b. 14.53 mm c. 16.45 mm…The operation of the exhaust and intake valves in an automobile engine consists of cam C, pushrod DE, rocker arm EFG which is hinged at F and on a spring , and valve V. If the compression on the spring is 20 mm when the valve is open, as indicated in the figure, determine the normal force acting on the lobe of the cam at C. Assume that the cam and the bearings at H, I, and J are smooth. The spring has a stiffness of 300N/m. draw the free body diagramFour 10 kg masses are being supported by an 800mm solid rod. The rod is being supported at both ends, and the rest of the rod is suspended. Determine the smallest rod diameter to support the masses without bending the rod. Assume the Tensile Strength of the Rod material is 500 MPa
- The blade of the bulldozer shown below is rigidly attached to a linkage consisting of the arm AB, which is controlled by the hydraulic cylinder BC. There is an identical linkage on the other side of the bulldozer. Applied loads shown are for both linkages and F = 581 kN. Determine the magnitude of the pin reaction at A in kN.Determine the magnitude of the pin reaction at B in kN.Determine the magnitude of the pin reaction at C in kN.Determine the pressure in hydraulic cylinder BC in Pa if the cylinder has a diameter of 80 mm.A 300kg counterweight with center of mass at G is mounted on the AB crank rod of the oil pump unit. If the motor supplies a torque M = 250Nm determine the force F developed by the fixed cable attached to the end of the mobile beam DEFHinge pin P is loose through bracket tube, there is a small gap between tube and bracket at point A. Determine the frame tube reactions at A and B associated with the weight L of a person 80.0 kg.