Physics, 16.12.2019 18:31 AmaiyahHarrison6356
A45.0 kg girl is standing on a 159 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 1.38 m/s relative to the plank.(a) what is her velocity relative to the surface of ice? 1 m/s(b) what is the velocity of the plank relative to the surface of ice? 2 m/s
Answers: 1
and 
be the velocity of Plank and girl w.r.t ice
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A45.0 kg girl is standing on a 159 kg plank. the plank, originally at rest, is free to slide on a fr...
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