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Introductory Physics Homework Help
Car acceleration kinematics give average power
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[QUOTE="late347, post: 5465462, member: 531743"] No values were given for any frictions or air drag, though. I suppose one has to be content that that the average power was calculated. It looks like the average power was to be calculated as the work done divided by time. I checked it from textbook again to be sure. I suppose that in real life the friction would be varied in the beginning of the car journey. Because the car starts from a standstill, and should be accelerated in optimal manner , to its max velocity. Although 143km/h sounds quite fast speed indeed. Especially for regular car. The performance tester driver ought to avoid "skidding the tyres", when accelerating from standstill etc... Indeed this comes back to the idea that possibly less power is used, in the beginning acceleration portion, when accelerating from standstill. [/QUOTE]
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Car acceleration kinematics give average power
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