Physics, 12.04.2021 23:30 trippyjazmine

A 45.0-kg girl is standing on a 168-kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.55 m/s to the right relative to the plank. Required:
What is the velocity of the plank relative to the surface of the ice?

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A 45.0-kg girl is standing on a 168-kg plank. The plank, originally at rest, is free to slide on a f...