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A cylinder of mass m and radius r rests ...

A cylinder of mass m and radius r rests on two supports of the same height (Fig. ). One support is stationary, while the other slides from under the cylinder at a velocity v. Determine the force of normal pressure N exerted by the cylinder on the stationary support at the moment when the distance between points A and B of the supports is `Ab = r sqrt(2)`, assuming that the supports wery very close to each other at the initial instant. The friction between the cylinder and the supports should be neglected.

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