Mathematical and Physical Journal
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Problem P. 3949. (January 2007)

P. 3949. What is the period of that space probe which orbits a 100 km above the surface of the Mars. For how long can the space probe, ``see'', remain in radio-contact with the lander? First the lander was bouncing on the surface of Mars, which has rare atmosphere. After the first bounce it raised 20 metres. What is the elapsed time between two bounces?

(4 pont)

Deadline expired on February 12, 2007.


120 students sent a solution.
4 points:56 students.
3 points:37 students.
2 points:14 students.
1 point:8 students.
0 point:2 students.
Unfair, not evaluated:3 solutionss.

Problems in Physics of KöMaL, January 2007