Problem P. 4164. (May 2009)
P. 4164. What is the reason that if a stick is put to one of our fingertips, it is easier to balance (to keep it in a vertical position) a longer stick than a shorter one?
Deadline expired on June 11, 2009.
60 students sent a solution. 3 points: 52 students. 2 points: 3 students. 1 point: 3 students. Unfair, not evaluated: 2 solutions.