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P. 3864. It takes a certain time for a cylinder to slide down without slipping on an inclined plane with friction. Using energy methods decide whether the cylinder would slide down during shorter or longer time if there was no friction.

(3 points)

Deadline expired on 13 March 2006.

Statistics on problem P. 3864.
 167 students sent a solution. 3 points: 99 students. 2 points: 11 students. 1 point: 33 students. 0 point: 21 students. Unfair, not evaluated: 3 solutions.

• Problems in Physics of KöMaL, February 2006

•  Támogatóink: Morgan Stanley