Mathematical and Physical Journal
for High Schools
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Problem M. 389. (October 2019)

M. 389. Attach a piece of thread to an egg and place the egg into a cylinder-shaped container. Pour water into the container such that it covers the egg, and then carefully pull out the egg from the water with the help of the thread.

Measure how the tension in the thread depends on the displacement of the egg. Determine the work done, while the egg was pulled out. Does this work depend on the cross section of the container?

(6 pont)

Deadline expired on November 11, 2019.


28 students sent a solution.
6 points:Jeszenői Sára, Pácsonyi Péter.
5 points:Fajszi Bulcsú, Fodor Daniel, Fodor Marcel, Fonyi Máté Sándor, Herczeg István, Ludányi Levente, Mácsai Dániel, Varga 235 Áron.
4 points:9 students.
2 points:7 students.
1 point:1 student.
0 point:1 student.

Problems in Physics of KöMaL, October 2019