Mathematical and Physical Journal
for High Schools
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Problem P. 4774. (November 2015)

P. 4774. A bumper is mounted to a vertical rod, hinged at its bottom end, at a distance of \(\displaystyle d\) from the hinge. There is a small bead at rest on the bumper. The rod is started to vibrate and executes SHM about its original position with a small angular amplitude of \(\displaystyle \theta_0\), as shown in the figure. What should the frequency of the vibration be in order that the bead flies off? (Friction is negligible.)

(5 pont)

Deadline expired on December 10, 2015.


37 students sent a solution.
5 points:Asztalos Bogdán, Balogh Menyhért, Bekes Nándor, Blum Balázs, Forrai Botond, Jakus Balázs István, Sal Kristóf, Szépfalvi Bálint, Tomcsányi Gergely.
4 points:Juhász 326 Dániel, Páhoki Tamás, Szentivánszki Soma .
3 points:20 students.
2 points:3 students.
1 point:2 students.

Problems in Physics of KöMaL, November 2015