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Q.
Position-time graph for a particle is shown in figure. Starting from $t=0$, at what time $t$, the average velocity is zero?
Motion in a Straight Line
Solution:
If we look at the graph very carefully at $t=0, x=6\, m$
The average velocity will be zero if it comes back to the initial position.
It is evident that at $t=6\, s,\, x=6\, m$
So, $v_{\text {av }}$ at $t=6\, s$ is zero.
