Problem P. 4133. (January 2009)
P. 4133. What is the greatest angle of elevation of a slope onto which a cylinder which has an elliptical cross section can be placed, such that it stays at rest, provided that friction is big enough? The semi-major axis of the ellipse is a and its semi-minor axis is b.
Deadline expired on February 11, 2009.
12 students sent a solution. 5 points: Deák Zsolt, Fonai Dániel, Földes Imre, Iván Dávid, Jéhn Zoltán, Laczkó Zoltán Balázs, Lovas Lia Izabella, Vuchetich Bálint. 4 points: Budai Ádám. 3 points: 1 student. 2 points: 2 students.