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Two ice skaters want to prove conservation of momentum. Skater A has a mass of 72 kg, and skater B has a mass of 48 kg. They are originally at rest. They hold hands and face each other. They then push off each other and move in opposite directions. Skater B moves with a velocity of 3 m/s.

What must the velocity of skater A be in the opposite direction after the push in order to prove conservation of momentum?

(1 point)

4.5 m/s

3.0 m/s

1.5 m/s

2.0 m/s

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4 answers
  1. 48 * 3 = 72 * v

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  2. So no answer?

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  3. wake up

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  4. It's 2.0m/s

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