A 1.50 x 103 - kg car starts from rest and accelerates uniformlyto 18.0 m/s in 12.0 s. Assume that air resistance remains constantat 4.00 x 102 N during this time. Find (a) the averagepower developed by the engine and (b) the instantaneouspower output of the engine at t = 12.0 s, just before the carstops accelerating.

Answered: A 1.50 x 103 - kg car starts from rest…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 57P: A 1.50 103-kg car starts from rest and accelerates uniformly to 18.0 m/s in 12.0 s. Assume that,...

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A 1.50 x 10³ - kg car starts from rest and accelerates uniformly
to 18.0 m/s in 12.0 s. Assume that air resistance remains constant
at 4.00 x 10² N during this time. Find (a) the average
power developed by the engine and (b) the instantaneous
power output of the engine at t = 12.0 s, just before the car
stops accelerating.

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