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physics 2!!**

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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!!** - ,

    Momentum is converved. The momentum initial is zero, the momentum after if
    skatermass*.84+45*(-.71)=0

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