Mathematical and Physical Journal
for High Schools
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Problem P. 4598. (January 2014)

P. 4598. Jill and Jack organise a ``rolling bicycle race'' along a long enough slope. Their bicycles are alike and none of them pedals the bicycle. Jill weighs 50 kg, Jack is 100 kg, and the mass of the bicycle is 15 kg. The cross sectional area of Jack is one and a half times as much as that of Jill. Who will reach greater terminal speed?

(4 pont)

Deadline expired on February 10, 2014.

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

Megoldásvázlat. A végsebesség a tömeg és a homlokfelület arányának négyzetgyökével arányos. Ez a szám Bandinál mintegy 8 százalékkal nagyobb, mint Andinál, tehár Bandi végsebessége lesz nagyobb.


122 students sent a solution.
4 points:63 students.
3 points:31 students.
2 points:10 students.
1 point:11 students.
0 point:6 students.
Unfair, not evaluated:1 solution.

Problems in Physics of KöMaL, January 2014