Mathematical and Physical Journal
for High Schools
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Problem P. 4137. (February 2009)

P. 4137. A small ball is pushed along a horizontal tabletop, and totally elastically bounces off an inclined plane placed in the way of the ball. Moving upwards, how many times will the ball bounce on the incline? (Neglect the rotation of the ball.)

(5 pont)

Deadline expired on March 11, 2009.


Statistics:

44 students sent a solution.
5 points:Bali-Papp Donát, Barancsuk Lilla, Börcsök Bence, Budai Ádám, Csengeri Béla, Csopor Dávid, Galzó Ákos Ferenc, Hartstein Máté, Iván Dávid, Jakab Dávid, Jéhn Zoltán, Kardos Örs, Kovács 235 Gábor, Krämer Zsolt, Kungl 008 Ákos, Lovas Lia Izabella, Maknics András, Mayer Martin János, Najbauer Eszter Éva, Orosz Ákos, Pálovics Péter, Patartics Bálint, Pázmán Koppány, Somogyi József, Trényi Róbert, Vuchetich Bálint.
4 points:Bodosi Eszter, Ercsey Tamás, Filep Gábor, Hegedűs Csaba, Kovács Benjámin, Lájer Márton, Para Attila, Rácz 722 Gergely, Vörös Beáta.
3 points:4 students.
0 point:4 students.
Unfair, not evaluated:1 solution.

Problems in Physics of KöMaL, February 2009