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## Homework Statement

Two skaters stand in the center of a circular rink of frictionless ice. When the skaters push on one another, they move apart along the same straight line. If the skater of mass m1 = 50 kg reaches the edge of the rink after 12 seconds and the other skater reaches the opposite edge of the rink in 18 seconds, what is the mass m2 of the second skater?

## Homework Equations

M1V1 + M2V1 = M1V2 + M2V2 ???

## The Attempt at a Solution

How do I get the mass if the distance is not given?