A 450 kg girl is standing on a 136 kgplank the plank, Physics

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A 450 kg girl is standing on a 136 kgplank the plank

A 45.0 kg girl is standing on a 136 kgplank. The plank, originally at rest, is free to slide on a frozenlake, which is a flat, frictionless surface. The girl begins towalk along the plank at a constant velocity of 1.43 m/s relative to the plank.

(a) What is her velocity relative to thesurface of ice?

m/s

(b) What is the velocity of the plank relative to the surface ofice?

m/s

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Physics: A 450 kg girl is standing on a 136 kgplank the plank

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Physics: A 450 kg girl is standing on a 136 kgplank the plank

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