1. A purple line express car starts at Howard station at time 0, pointing north. Its velocity as a function of time (in hours) is given by v(t) = -6000t? + 1000£ miles per hour. (a) How far north does the train travel before turning around? (b) At what time does the train come back to Howard station? (c) If the train's fuel efficiency is 2 miles per gallon, how many gallons of fuel are consumed from t = 0 to t =1/2 hour?

1. A purple line express car starts at Howard station at time 0, pointing north. Its velocity as a function of time (in hours) is given by v(t) = -6000t? + 1000£ miles per hour. (a) How far north does the train travel before turning around? (b) At what time does the train come back to Howard station? (c) If the train's fuel efficiency is 2 miles per gallon, how many gallons of fuel are consumed from t = 0 to t =1/2 hour?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter1: Physics And Measurement

Section: Chapter Questions

Problem 1.29P

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