Wednesday
October 1, 2014

Homework Help: Physics B

Posted by Sarah on Monday, November 12, 2012 at 5:15pm.

Part 1
A 36 kg girl is standing on a 65 kg plank. The
plank, originally at rest, is free to slide on a
frozen lake, which is a flat, frictionless supporting surface. The girl begins to walk along the plank at a constant speed of 1.89 m/s to
the right relative to the plank.
What is her velocity relative to the ice surface?
Answer in units of m/s

Part 2
the plank at a constant speed of 1.89 m/s to
the right relative to the plank.
What is her velocity relative to the ice surface?
Answer in units of m/s

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