Mathematical and Physical Journal
for High Schools
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Problem G. 698. (February 2020)

G. 698. We have three solid cubes of edges 1 cm, 3 cm and 9 cm. A tower is built from the three cubes. By what factor will the pressure exerted by the tower on the horizontal tabletop be greater when the smallest cube is at the bottom compared to when the largest cube is at the bottom?

(3 pont)

Deadline expired on March 10, 2020.


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

Megoldás. A három kocka összes súlya mindkét esetben ugyanakkora. A legkisebb kocka oldallapjának területe 81-szer kisebb, mint a legnagyobb kockáé. A nyomás – adott nyomóerő mellett – fordítottan arányos a felülettel, tehát a kérdezett arányszám 81.


Statistics:

80 students sent a solution.
3 points:52 students.
2 points:23 students.
1 point:2 students.
0 point:3 students.

Problems in Physics of KöMaL, February 2020