P. 4157. What is the least horizontal force which can turn over a cube which is on a horizontal tabletop? Examine the following three cases:

a) 0;

b) =0.2;

c) =1.

(5 points)

Deadline expired.

Statistics on problem P. 4157. 73 students sent a solution. 5 points: Béres Bertold, Budafoki Richárd Gergely, Farkas Martin, Kaposvári István, Laczkó Zoltán Balázs, Szenczi Zoltán, Wang Daqian. 4 points: Batki Bálint, Egyed Zsombor, Emroz Khan, Illés Dorottya, Mayer Martin János, Nagy 111 Miklós, Najbauer Eszter Éva, Schwarcz Gergő, Somogyi József, Virágh Eszter. 3 points: 28 students. 2 points: 2 students. 1 point: 11 students. 0 point: 7 students. Unfair, not evaluated: 8 solutions.