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P. 3846. A hollow solid of revolution is rotated about its vertical axis of symmetry at an angular velocity of . What is the shape of this solid if a small object is in equilibrium at any point on the interior surface of the solid. (Static friction is negligible.)

(4 points)

Deadline expired on 11 January 2006.

Statistics on problem P. 3846.
 113 students sent a solution. 4 points: 58 students. 3 points: 11 students. 2 points: 9 students. 1 point: 12 students. 0 point: 21 students. Unfair, not evaluated: 2 solutions.

• Problems in Physics of KöMaL, December 2005

•  Támogatóink: Morgan Stanley