At t = 0, a train approaching a station begins decelerating from a speed of 80 miles/hour according to the acceleration function a(t) = -1280(1+ 8t)-3, where t> 0 is measured in hours. The units of acceleration are mi/hr2. (a) What's the velocity of the train at t: 0? (b) Find the velocity v(t) of the train for t > 0. (c) How far does the train travel in the first 15 minutes (1/4 hour)?

At t = 0, a train approaching a station begins decelerating from a speed of 80 miles/hour according to the acceleration function a(t) = -1280(1+ 8t)-3, where t> 0 is measured in hours. The units of acceleration are mi/hr2. (a) What's the velocity of the train at t: 0? (b) Find the velocity v(t) of the train for t > 0. (c) How far does the train travel in the first 15 minutes (1/4 hour)?

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter1: Measurement

Section: Chapter Questions

Problem 26SA

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