Physics, 25.07.2019 13:30, FinnaCryDotJpeg

On an ice skating rink, a girl of mass 50 kg stands stationary, face to face with a boy of mass 80 kg. the children push off of one another, and the boy moves away with a velocity of +3 m/s. what is the final velocity of the girl? –1.9 m/s +1.9 m/s –4.8 m/s +4.8 m/s

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On an ice skating rink, a girl of mass 50 kg stands stationary, face to face with a boy of mass 80 k...