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A 0.14-kg pinecone falls 16m on the ground, where it lands with a speed of 13 m/s.
A) What speed would the pinecone have landed if there had been no air resistance?
B) How much work was done on the pinecone by air resistance?
C) What was the avg. air resistance exerted on the pinecone?

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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