Problem P. 3786. (March 2005)
P. 3786. J. F. Jolly (1809-1884), a Munich teacher of physics, measured with his very sensitive self-made balance that at a depth of 5.3 m the weight of a body is greater by one and a half millionth than that on the surface. How can that be reconciled with Newton's gravitational law?
Deadline expired on April 11, 2005.
97 students sent a solution. 5 points: Ágas Márton, Buday Péter, Csire Gábor, Deák 666 Áron, Elter Zsolt, Hegyi Ádám, Horváth 795 Andrea, Keresztes Szabolcs, Kolcza Mátyás Barna, Kónya 495 Gábor, Lantos Judit, Lapis Leonárd, Máté István Mátyás, Molnár 811 Kristóf, Nagy 317 Péter, Nagy 555 Zoltán, Ökrös Tamás, Pálinkás Csaba, Peregi Tamás, Sikó Lóránt, Széchenyi Gábor, Szilágyi Zsombor, Szolnoki Lénárd, Tüzes Dániel, Werner Miklós. 4 points: 51 students. 3 points: 9 students. 2 points: 5 students. 1 point: 1 student. 0 point: 1 student. Unfair, not evaluated: 5 solutions.