Draw the position-time graph produced when a person starts at the 0.50-m mark, walks away from the detector slowly and steadily for 3 seconds at 0.50 m/s, stops for 3 second, and then walks for 6 seconds toward the detector half as fast as he or she walked away from it, then sits there for 3 seconds. 1. What is the total displacement and the total distance traveled? 2. What is the average speed from 0 to 15 seconds? 3.  What is the average velocity from 0 to 15 seconds?

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