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Q.
The sign (+ ve or $-$ ve $)$ of the average velocity depends only upon
Motion in a Straight Line
Solution:
Since, average velocity, $\bar{v}=\frac{\Delta x}{\Delta t}=\frac{\text { Displacement }}{\text { Time interval }}$
Thus, average velocity depends on the displacement and hence, it can be positive or negative depending upon the sign of the displacement.