Physics, 27.01.2020 21:31 sierrathomas431
A46.0-kg girl is standing on a 157-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 1.48î 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?
Answers: 1
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A46.0-kg girl is standing on a 157-kg plank. both originally at rest on a frozen lake that constitut...
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