Chap3_LinearMotion - Chapter 3 Linear Motion (Motion in a...

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Chapter 3 Linear Motion (Motion in a straight line, such as falling straight downward)
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Concepts you’ll learn in this chapter Speed and Velocity Acceleration Relationships among distance, velocity, and acceleration. Falling motion.
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Speed Define speed of an object as For example, 60 kilometers per hour means the object travels distance of 60 kilometers in an elapsed time of one hour. Write as, Speed = Distance traveled Time elapsed 60 kilometers per hour = 60 km hour
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Speed and Distance From definition of speed, Example: If speed is 90 kilometers per hour and time elapsed is 2 hours then distance traveled is 90 x 2 = 180 km. Distance traveled = Speed x Time elapsed Match units : This time elapsed is also 120 minutes, but it’s not correct to compute distance traveled as 90 x 120 = 10800 km {WRONG}.
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Average versus Instantaneous Speed Sometimes we consider the average speed , other times we use the instantaneous speed . For example, say it takes you 30 minutes to drive the 20 kilometers from home to campus.
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This note was uploaded on 04/29/2010 for the course PHYS 100 taught by Professor Nidhalguessoum during the Spring '10 term at American University of Sharjah.

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Chap3_LinearMotion - Chapter 3 Linear Motion (Motion in a...

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