A 456-kg girl is standing on a 141-kg plank both originally

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A 45.6-kg girl is standing on a 141-kg plank. Both originally at rest on a frozen lake that constitutes a frictionless, flat surface. The girl begins to walk along the plank at a constant velocity of 1.52i m/s relative to the plank.

(a) What is the velocity of the plank relative to the ice surface?

(b) What is the girl's velocity relative to the ice surface?

 

Reference no: EM13643594

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