Mathematical and Physical Journal
for High Schools
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Problem M. 275. (January 2007)

M. 275. Let a small disc of magnet slide along a long inclined plane made of aluminum. Measure the speed of the disc when it is uniform as a function of the angle of inclination of the slope. Determine the coefficient of kinetic friction.

(6 pont)

Deadline expired on February 12, 2007.


16 students sent a solution.
6 points:Láng Marcell, Pásztor Árpád, Pósa László, Roósz Gergő.
5 points:Kőrösi Márton, Meszéna Balázs, Rárósi Dávid, Székely Gergely, Szél Péter, Tüzes Dániel, Vida György.
4 points:3 students.
3 points:1 student.
2 points:1 student.

Problems in Physics of KöMaL, January 2007