Решение задачи по физике раздел 31 пункт 39 механика

39. A closed system consists of two particles with masses m1 and m2, which are moving at right angles to each other at speeds υ1 and υ2.
Find in their center of mass:
a) the momentum of each particle;
b) the total kinetic energy of the two particles.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)