At the top of an inclined plane of length l with an angle of inclination a there is a solid cylinder with a base radius r (Fig. 14.13). The cylinder rolls without slipping. Find the speed of the center of mass of the cylinder below if the coefficient of rolling friction is equal to k. Can rolling friction be neglected? Perform the calculation under the following conditions: l=1 m, a=30°, r=10 cm, k=5 ·10-4 m. What would be the speed if there was no friction and the cylinder slipped?

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