Problem P. 4362. (September 2011)
P. 4362. 10 cm from a tap the diameter of the narrow water stream, flowing from the tap, is 2 mm. How long does it take to fill a half-litre mug?
(4 pont)
Deadline expired on October 10, 2011.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. A vízsebesség \(\displaystyle \sqrt{2gh}=\)1,4 m/s, a vízhozam \(\displaystyle v\cdot r^2\pi=4{,}4\cdot 10^{-6}~{\rm m^3/s},\) a töltési idő 1,9 perc.
Statistics:
159 students sent a solution. 4 points: 97 students. 3 points: 19 students. 2 points: 10 students. 1 point: 14 students. 0 point: 14 students. Unfair, not evaluated: 5 solutionss.
Problems in Physics of KöMaL, September 2011