Problem P. 3989. (May 2007)
P. 3989. A proton moving with 60% of the speed of light is scattered elastically on another proton which was initially at rest. After scattering the angles of deflection of the two protons measured from the direction of the motion of the initially moving proton are the same. What is this scattering angle and what are the speeds of the protons?
Deadline expired on June 11, 2007.
37 students sent a solution. 5 points: Almási 270 Gábor András, Balogh Máté, Bogár 560 Péter, Csató Bertalan, Demeter Dániel, Drozdy András, Dudás János, Farkas Ádám László, Hegyi Ádám, Hlatky Dávid, Krämer Zsolt, Lovas Lia Izabella, Nagy 224 Csaba, Pálovics Róbert, Pásztor Ádám Viktor, Pásztor Árpád, Soós 989 János, Szolnoki Lénárd, Tolner Ferenc, Túri Attila, Tüzes Dániel, Varga Bonbien. 4 points: Blastik Zsófia, Takács 484 Marcell. 3 points: 1 student. 2 points: 2 students. 1 point: 3 students. 0 point: 3 students. Unfair, not evaluated: 4 solutions.