Log1989 problem №3.31

Log1989 problem №3.31

A helium atom of mass m and a mercury vapor atom of mass 50m move in a vacuum along a straight line towards each other. The velocity of the helium atom is 1 · 10 3 m / s, the velocity of the mercury atom is 2 · 10 2 m / s. Find the velocity and after their collision, considering the impact elastic.

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