Mathematical and Physical Journal
for High Schools
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Problem P. 3797. (April 2005)

P. 3797. On a horizontal frictionless table a stick of mass M, length of L and of homogeneous mass distribution is standing.

a) With what velocity had a small body of mass m slid into it, if the stick hit the table after a turn of an angle \alpha?

b) How far was the mass center of the stick from the small body at this moment?

(The collision of the small body and the stick is perfectly elastic.) (Data: M=0.6 kg, m=0.2 kg, L=0.8 m, \alpha=60o.)

(5 pont)

Deadline expired on May 11, 2005.


Statistics:

52 students sent a solution.
5 points:Domonkos Tamás, Dudás János, Gyenis András, Hagymási Imre, Kocsis Vilmos, Kónya 495 Gábor, Lantos Judit, Lapis Leonárd, Matulik Gábor, Nyíri Dávid Ákos, Pálinkás Csaba, Pósa László, Strenner Balázs, Széchenyi Gábor, Szolnoki Lénárd, Szurmai Csongor, Takátsy Balázs, Werner Miklós.
4 points:K. Gergely, Lakomcsik Attila, Meszéna Balázs, Pásztor 001 Attila, Péter Zsolt, Roósz Gergő.
3 points:8 students.
2 points:8 students.
1 point:9 students.
0 point:3 students.

Problems in Physics of KöMaL, April 2005