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A couple of magnitude 50lb ·ft is applied to the drum. Determine the smallest force that must be exerted by the hydraulic cylinder if the drum
A couple M of magnitude 6 N · m is applied to the input link of the four-bar slider mechanism shown. For each of the two given positions, determine the force
A drum of 200-mm radius is attached to a disk of radius rA = 150 mm.
A drum of 100-mm radius is attached to a disk of 200-mm radius. The disk and drum have a combined mass of 5 kg and a combined radius of gyration of 150 mm.
A driver starts his car with the door on the passenger's side wide open (v = 0). The 36-kg door has a centroidal radius of gyration k = 250 mm
A concrete foundation mat in the shape of a regular hexagon with 3-m sides supports four column loads as shown
A concrete foundation mat in the shape of a regular hexagon with 3-m sides supports four column loads as shown. Determine the magnitudes of the additional loads
A collar B of mass m is attached to the spring AB and can move along the rod shown.
A collar B, of mass m and negligible dimensions, is attached to the rim of a hoop of the same mass m and of radius r that rolls without sliding on a horizontal
A collar of mass m which slides on a frictionless horizontal rod is attached to a spring of constant k and is acted upon by a periodic force of magnitude
A collar that can slide on a vertical rod is subjected to the three forces shown. Determine
A chain of length l and mass m falls through a small hole in a plate. Initially, when y is very small, the chain is at rest.
A circular reentrant orifice (also called Borda's mouthpiece) of diameter D is placed at a depth h below the surface of a tank.
A coin is tossed into the air. It is observed to spin at the rate of 600 rpm about an axis GC perpendicular to the coin and to process about the vertical
A cantilever beam AB supports a block which causes a static deflection of 40 mm at B. Assuming that the support at A undergoes a vertical periodic displacement
A car and a truck are both traveling at the constant speed of 54 km/h; the car is 30 m behind the truck.
A car owner uses wrench ABC to loosen the lug nut at C. The length of the handle AB is 372 mm, and the owner applies forces A and B to the wrench
A certain accelerometer consists essentially of a box containing a mass-spring system with a known natural frequency of 1760 Hz.
A baseball pitching machine "throws" baseballs with a horizontal velocity v0 . Knowing that height h varies between 788 mm and 1068 mm, determine
A ball is thrown into a 90° corner with an initial velocity v. Denoting the coefficient of restitution by e, show that the final velocity is of magnitude
A ball is dropped onto a step at point A and rebounds with a velocity v0 at an angle of 15° with the vertical.
A basketball player shoots when she is 5 m from the backboard. Knowing that the ball has an initial velocity v0 at an angle of 30° with the horizontal
A bar of mass m = 5 kg is held as shown between four disks each of mass m' = 2 kg and radius r = 75 mm.
A boat is moving to the right with a constant deceleration of 0.3 m/s2 when a boy standing on the deck D throws a ball with an initial velocity
A block of weight W is suspended from a 25-in.-long cord and two springs of which the unstretched lengths are 22.5 in