Position-time graph for a particle is shown in figure. Starting from t=0 , at what time t is .......

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2.Motion in Straight Line

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Position-time graph for a particle is shown in figure. Starting from $t=0$, at what time $t$ is ......... $s$, the average velocity is zero

A

$1$

B

$3$

C

$6$

D

$7$

Solution

(c)

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, $v_{ av }$ at $t=6 \,s$ is zero.

Standard 11

Physics

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