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Pin C is attached to rod CD and slides in a slot cut in arm AB. Knowing that rod CD moves vertically upward with a constant velocity v0, derive an expression
Pin A, which is attached to link AB, is constrained to move in the circular slot CD. Knowing that at at t = 0 the pin starts from rest and moves
Packages in an automobile parts supply house are transported to the loading dock by pushing them along a roller track with very little friction.
Packages are thrown down an incline at A with a velocity of 4 ft/s. The packages slide along the surface ABC to a conveyor belt which moves with a velocity
Using the parallel-axis theorem, determine the product of inertia of the area shown with respect to the centroidal x and y axes.
The boom OA carries a load P and is supported by two cables as shown. Knowing that the tension is 510 N in cable AB and 765 N in cable AC
The position of crank BCD is controlled by the hydraulic cylinder AB. Determine the angle ? knowing that the hydraulic cylinder exerts a 105-lb force
Point A oscillates with an acceleration a = 40 - 160x, where a and x are expressed in m/s2 and meters, respectively
Point A oscillates with an acceleration a = 100 (0.25 - x), where a and x are expressed in m/s2 and meters, respectively.
Member BD exerts on member ABC a force P directed along line BD. Knowing that P must have a 960-N vertical component, determine
Member CB of the vise shown exerts on block B a force P directed along line CB. Knowing that P must have a 260-lb horizontal component
Knowing that the line of action of the force Q passes through point C, derive an expression for the magnitude of Q required to maintain equilibrium.
Knowing that the velocity of an experimental space probe fired from the earth has a magnitude vA = 32.5 Mm/h at point A
The smallest value of BW for which the system is in equilibrium
Knowing that WA = 40lb, WB = 52 lb, and ? =25°, determine
Member ABCD is supported by a pin and bracket at C and by an inextensible cord attached at A and D and passing over frictionless pulleys at B and E
Knowing that the coefficient of static friction between the 20-kg block and the incline is 0.30, determine the smallest value of ?
Knowing that the coefficient of static friction between the tires and the road is 0.80 for the automobile shown, determine the maximum possible acceleration
Knowing that the coefficient of static friction is 0.25 between the rope and the horizontal pipe and 0.20 between the rope and the vertical
Knowing that the coefficient of static friction is 0.30 between the rope and the horizontal pipe and that the smallest value of P
Knowing that the maximum allowable couple that can be applied to a shaft is 1.75kN · m, determine the maximum power that can be transmitted by the shaft
Q: Knowing that a =25°, determine the tension (a) In cable AC
Knowing that at the instant shown the angular velocity of rod AB is 15 rad/s clockwise, determine
Knowing that at the instant shown bar AB has a constant angular velocity of 5 rad/s counterclockwise, determine
Knowing that at the instant shown bar AB is rotating counterclockwise and that the magnitude of the velocity of the midpoint of bar BC is 7.8 ft/s