Mathematical and Physical Journal
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Problem P. 4381. (November 2011)

P. 4381. The uniform density prism of mass M, shown in the figure is at rest on the surface of the ice of a skating rink. What is the greatest force with which it can be moved such that it does not rise? (Friction is negligible.)

(4 pont)

Deadline expired on December 12, 2011.


Sorry, the solution is available only in Hungarian. Google translation

Megoldás. \(\displaystyle F\le \frac{2\ell}{h} \,Mg.\)


Statistics:

139 students sent a solution.
4 points:Ábrahám Attila, Agócs Fruzsina, Bolgár Dániel, Csathó Botond, Csibi Levente, Czipó Bence, Dávid Bence, Epinger Bálint, Fekete Panna, Fonyó Viktória, Garami Anna, Havasi 0 Márton, Hegyfalvi Csaba, Horváth András Levente, Iglói Gábor, Janzer Barnabás, Janzer Olivér, Jenei Márk, Kácsor Szabolcs, Kacz Dániel, Kollarics Sándor, Koncz Gabriella, Laczkó Zoltán Balázs, László 002 Dávid, Machó Bónis, Nagy Lajos, Nagy Zsolt, Papp Roland, Pázmán Zalán, Pölöskei Péter Zsolt, Reitz Angéla, Sárvári Péter, Seress Dániel, Sinkó Péter, Szabó 928 Attila, Szélig Áron, Tarjányi 158 Dániel, Tossenberger Tamás, Tóth Bálint, Zahemszky Péter, Zilahi Tamás.
3 points:Antalicz Balázs, Bakonyi Ferenc, Cseuz Áron, Csuma-Kovács Rita, Huszár Emese, Láda Bence, Tóth 744 András.
2 points:24 students.
1 point:51 students.
0 point:16 students.

Problems in Physics of KöMaL, November 2011