Physics, 18.07.2020 01:01 dearydn22

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 -4.0 m/s. To two significant digits (the tenths place), what is the final velocity of the girl? 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....