A Massive Bar Oscillating between Two Identical Rotating Support Rollers
A Massive Bar Oscillating between Two Identical Rotating Support Rollers
A heavy uniform bar of mass rests on top of two identical rollers that are continuously and rapidly turned in opposite directions with angular speed . The centers of the rollers are at a distance apart. The coefficient of kinetic friction between the bar and the roller surfaces is , a constant independent of the relative speed of the two surfaces. The bar, held at rest with its center at distance from the midpoint of the two rollers, is released at . This Demonstration depicts the subsequent motion.
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x(0)
t=0