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An object moves 20 m east in 30 s and then returns to
its starting point taking an additional 50 s. If west is
chosen as the positive direction, what is the average
speed of the object?
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Answer:
Define position, displacement, and distance traveled.
Calculate the total displacement given the position as a function of time.
Determine the total distance traveled.
Calculate the average velocity given the displacement and elapsed time.
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