plan .K 9א-ככ1 A 44.6-kg girl is standing surface. The girl begins to walk along the plank at a constant velocity of 1.52î m/s relative to the plank. originally at rest on frozen lake that constitutes a frictionless, flat (a) What is the velocity of the plank relative to the ice surface? |îm/s (b) What is the girl's velocity relative to the ice surface? |î m/s

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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A 44.6-kg girl is standing on a 155-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 1.52î m/s relative to the plank.
(a) What is the velocity of the plank relative to the ice surface?
]îm/s
(b) What is the girl's velocity relative to the ice surface?
Tim/s
Transcribed Image Text:A 44.6-kg girl is standing on a 155-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 1.52î m/s relative to the plank. (a) What is the velocity of the plank relative to the ice surface? ]îm/s (b) What is the girl's velocity relative to the ice surface? Tim/s
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