problem 6-109 a rack and pinion system is sketched in figure P6-109. The axis of the pinion is fixed in frictionless bearings, and the flexible inextensible massless cord wrapped around the circular pulley of radius a is pulled by an external force f(t), which remains horizontal at all times.
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problem 6-109 a rack and pinion system is sketched in figure
P6-109. The axis of the...
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A sphere of radius R can rotate about a vertical axis on frictionless bearings (see figure below). Let the rotational inertia of the sphere be A massless cord passes around the equator of the sphere, over a pulley with rotational inertial and radius r, and is attached to a small object of mass m. There is no friction on the pulley's axle and the cord does not slip on the pulley. At 1 = 0, the mass m has speed...
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