Problem P. 4468. (October 2012)
P. 4468. A circular piece of radius r is cut out of a disc of radius R as shown in the figure. At what ratio of r/R will the centre of mass of the remaining piece be closer to the centre of the disc than R/100?
(4 pont)
Deadline expired on November 12, 2012.
Sorry, the solution is available only in Hungarian. Google translation
Megoldásvázlat. \(\displaystyle r/R < 0{,}105\,12\approx 0{,}1.\)
Statistics:
147 students sent a solution. 4 points: 96 students. 3 points: 12 students. 2 points: 20 students. 1 point: 11 students. 0 point: 4 students. Unfair, not evaluated: 4 solutionss.
Problems in Physics of KöMaL, October 2012