Physics, 21.03.2020 00:26 dlatricewilcoxp0tsdw

A 44.8 kg girl is standing on a 141 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 1.48 m/s relative to the plank.
(a) What is her velocity relative to the surface of ice?
(b) What is the velocity of the plank relative to the surface of ice?

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A 44.8 kg girl is standing on a 141 kg plank. The plank, originally at rest, is free to slide on a f...