65. Motorcyclist circus travels along the inner surface of the vertical cylinder of radius r = 15 m. The center of mass of a motorcycle with a man separated at h = 1 m from the point of contact of the wheels with the wall. The friction coefficient of the tire wall f = 0.5. Determine: 1) minimum speed υmin, with which the rider must go; 2) the angle of inclination α to a horizontal surface of the rider for a given minimum speed.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)