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It is known that the connecting rod AB exerts on the crank BC a 2.5-kN force directed down and to the left along the centerline of AB.
It takes 16 s to raise a 2800-lb car and the supporting 650-lb hydraulic car-lift platform to a height of 6.5 ft. Knowing that the overall conversion efficiency
Knowing that portions AC and BC of cable ACB must be equal, determine the shortest length of cable that can be used to support the load
Knowing that at the instant shown the velocity of collar D is 1.6 m/s upward, determine
In the case of the forced vibration of a system, determine the range of values of the damping factor c/cc for which the magnification factor
In an automated manufacturing process, three holes are drilled simultaneously in an aluminum block as shown. Each drill exerts a 50-N force and a 0.100- N m
In a water-tank test involving the launching of a small model boat, the model's initial horizontal velocity is 20 ft/s and its horizontal acceleration varies
Four boxes are placed on a uniform 28-lb wooden plank which rests on two sawhorses. Knowing that the weights of boxes B and D are 9 lb and 90 lb
Four wooden members are joined with metal plate connectors and are in equilibrium under the action of the four forces shown.
Four small disks A, B, C, and D can slide freely on a frictionless horizontal surface. Disks B, C, and D are connected by light rods and are at rest
A 6-lb block is at rest relative to a parabolic dish which rotates at a constant rate about a vertical axis.
Horizontal and vertical links are hinged to a wheel, and forces are applied to the links as shown. Determine the range of values of the distance
Gear C has a mass of 5 kg and a centroidal radius of gyration of 75 mm. The uniform bar AB has a mass of 3 kg and gear D is stationary.
If an automobile's braking distance from 100 km/h is 60 m on level pavement, determine the automobile's braking distance from 100 km/h
High-strength bolts are used in the construction of many steel structures. For a 1-in.-nominal-diameter bolt the required minimum bolt tension is 47.25 kips
For the uniform semicircular plate of radius r, determine the period of small oscillations if the plate (a) Is suspended from point A as shown
For the frame and loading shown, determine the reactions at A and F when
For the frame and loading shown, determine the force acting on member ABC
Derive the equations of the shear and bending-moment curves
For the homogeneous tetrahedron of mass m shown
End A of a uniform 15-lb bar is attached to a horizontal rope and end B contacts a floor with negligible friction
For a given area the moments of inertia with respect to two rectangular centroidal x and y axes are Ix = 640 in4 and Iy = 280 in4, respectively
Find the magnitude and direction of the resultant of the two forces shown knowing that 500 P = lb and Q = 600 lb. You should solve the problem step wise step
For a steady-state vibration with damping under a harmonic force, show that the mechanical energy dissipated per cycle by the dashpot is E = pcx2m?f
For a rigid slab in translation, show that the system of the effective forces consists of vectors ors (?mi)a attached to the various particles of the slab