Compute her velocity relative to the surface of ice

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A 45.0 kilogram schoolgirl is standing on a 135 kilogram plank. The plank is 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 fix velocity of 1.52 m/s relative to the plank.

(a) Compute her velocity relative to the surface of ice?

(b) Compute the velocity of the plank relative to the surface of ice?

Reference no: EM13668438

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