Multiple Choice
An object moves 20 m east in 20 s and then returns to its starting point taking an additional 60 s.If west is chosen as the positive direction,what is the average speed of the object?
A) 0.5 m/s
B) -0.5 m/s
C) 8 m/s
D) 0 m/s
E) -8
Correct Answer:
Verified
Correct Answer:
Verified
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