How much work was done on the pine cone

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Reference no: EM13270550

A 0.21-kg pinecone falls 10 m to the ground, where it lands with a speed of 12 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?

N (upward)

Reference no: EM13270550

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