The given figure shows x-t graph of a particle.
Question:

The given figure shows $x-t$ graph of a particle. Find the time $t$ such that the average velocity of the particle during the period 0 to $\mathrm{t}$ is zero.

Solution:

Average velocity is zero when displacement is zero At $t=0 ; x=20$ and again at $t=12 ; x=20$

 

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