ximize fuel effici

College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter7: Work, Energy, And Energy Resources
Section: Chapter Questions
Problem 47PE: (a) What is the efficiency of an out-of-condition professor who does 2.10105J of useful work while...
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The fuel efficiency E (in kilometres per litre) of a certain car driven at a speed v (in kilometres per hour) is approximated by E(v)=1,500v/v2+1,600. If the speed limit is 100 km/h, determine the legal speed that will maximize fuel efficiency.

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