Mathematical and Physical Journal
for High Schools
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Problem P. 4289. (November 2010)

P. 4289. An ice floe is floating in the sea. The part which is above the water is a prism of height 0.5 m. A 200-kg seal climbs onto the floe, which sinks 5 cm deeper into the water. How many seals, which have the same mass, can the floe hold without sinking totally into the water? What is the volume of the ice floe?

(4 pont)

Deadline expired on December 10, 2010.

Sorry, the solution is available only in Hungarian. Google translation

Megoldás. 10 fókát bír el a jégtábla, és a térfogata kb. \(\displaystyle 25~m^3\).


220 students sent a solution.
4 points:165 students.
3 points:18 students.
2 points:25 students.
1 point:4 students.
0 point:1 student.
Unfair, not evaluated:7 solutionss.

Problems in Physics of KöMaL, November 2010