Homework Help: physics 2!!**

Posted by kelsey on Sunday, October 12, 2008 at 2:00am.

Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 45 kg skater acquires a speed of 0.71 m/s. If the speed of the other skater is 0.84 m/s, what is this skater's mass?

physics 2!!** - bobpursley, Sunday, October 12, 2008 at 3:06am
Momentum is converved. The momentum initial is zero, the momentum after if
skatermass*.84+45*(-.71)=0

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