Mathematical and Physical Journal
for High Schools
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Problem P. 4805. (February 2016)

P. 4805. A chain of length 30 m and of mass 40 kg is pulled up to a balcony at a height of 15, such that originally one end of the chain is already at the balcony. One half of the chain is hanging vertically and the other half lies on the ground in a small pile. How much work is done while the chain is pulled up?

(3 pont)

Deadline expired on March 10, 2016.


86 students sent a solution.
3 points:56 students.
2 points:17 students.
1 point:2 students.
0 point:11 students.

Problems in Physics of KöMaL, February 2016