A 021-kg pinecone falls 15 m to the ground where it lands
A 0.21-kg pinecone falls 15 m to the ground, where it lands with a speed of 9 m/s
(a) How much work was done on the pine cone by air resistance?
(b) What was the average force of air resistance exerted on the pine cone?
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A 0.21-kg pinecone falls 15 m to the ground, where it lands with a speed of 9 m/s, How much work was done on the pine cone by air resistance
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