You drive on Interstate 10 from San Antonio to Houston, half the time at 55 km/h and

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You drive on Interstate 10 from San Antonio to Houston, half the time at 55 km/h and the other half at 90 km/h. On the way back you travel half the distance at 55 km/h and the other half at 90 km/h. What is your average speed?

(a) From San Antonio to Houston,

(b) From Houston back to San Antonio, and

(d) What is your average velocity for the entire trip?

(e) Sketch x versus t for (a), assuming the motion is all in the positive x direction. Indicate how the average velocity can be found on the sketch.

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Nov 11, 2010 06:47 AM

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You drive on Interstate 10 from San Antonio to Houston, half the time at 55 km/h and

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a Denoting the travel time and distance from San Antonio to Houston as T and D respectively the aver...View the full answer

Fundamentals of Physics

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