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## Homework Statement

Two ice skaters stand at rest in the center of an ice rink. When they push off one another, the 60 kg skater acquires a speed of .61 m/s. If the speed of the other skater is .8m/s what is this skater's mass?

## Homework Equations

explosion- pi=pf

## The Attempt at a Solution

1/2m1v1^2=m2v2^2

1/2(60)(.61^2)=m2(.8^2)

11.16=m2(.64)

m2=17.43 but it said this was wrong

but then i got a really big number which doesn't seem right