George, the absent-minded professor, drives his car 5.0 miles due east along a straight road to the grocery store. Upon arriving there 15 minutes (0.25 h) after he left home, he suddenly realizes he forgot his grocery list. He immediately turns around and heads back towards home. After travelling 6.8 miles due west in 12 minutes (0.20 h), the car runs out of gas. What is his average velocity? Be sure to indicate the direction

Question

George, the absent-minded professor, drives his car 5.0 miles due east along
a straight road to the grocery store. Upon arriving there 15 minutes (0.25 h) after he left home, he suddenly realizes he forgot his grocery list. He immediately turns around and heads back towards home. After travelling 6.8 miles due west in 12 minutes (0.20 h), the car runs out of gas. What is his average velocity? Be sure to indicate the direction

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Kinematics

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