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Question: machine design by timothy h wentzell chapter 2 question 5...

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Machine Design by Timothy H Wentzell
chapter 2 question 5

If a 3,000-pound automobile has a combined wind resistance and frictional losses of 200 pounds at a speed of 50 mph:

a) calculate the power required to maintain this speed on a level road.

b) If it takes 3 seconds to accelerate to 60 mph from 50 mph, calculate the power to do this. (ignore frictional loss)

c) Assuming frictional losses stay the same during this period, what is the total power?

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