Mathematical and Physical Journal
for High Schools
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Problem P. 4475. (November 2012)

P. 4475. During the siege of the fortress of Eger the defenders used cannons to shoot the Turkish troops surrounding the fortress. Once the cannonball reached the top of its path 2 seconds after its projection, and during 3 further seconds its speed became 50 m/s. Estimate the initial speed and the direction of the projection of the cannonball.

(3 pont)

Deadline expired on December 10, 2012.

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

Megoldásvázlat. A vízszintestől mérve kb. 27 fokos szögben és 45 m/s nagyságú sebességgel lőtték ki.


210 students sent a solution.
3 points:174 students.
2 points:11 students.
1 point:5 students.
0 point:20 students.

Problems in Physics of KöMaL, November 2012