A truck moves 80.0 m east, then moves 140.0 m west, and finally moves east again a distance of 80.0 m. If east is chosen as the positive direction, what is the truck's resultant displacement?
a. 20.0 m
b. –20.0 m
c. 300.0 m
d. –300.0 m
e. 140.0 m
a
Physics & Space Science
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