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Standard IX

Physics

Velocity-Time Graph

The position ...

Question

The position (X)-time (t) graph for a particle moving along a straight line is shown in figure. The average speed of particle in time interval $t = 0$ to $t = 8 s$ is

Z e r o

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5 m / s

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7.5 m / s

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9.7 m / s

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Solution

The correct option is B $5 m / s$
average speed is v = $\frac{t o t a l d i s t a n c e}{t o t a l t i m e}$
total distance is 40m and total time is 8sec
$v = \frac{40}{8} = 5 m s^{- 1}$
hence the B option is correct

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The position (X)-time (t) graph for a particle moving along a straight line is shown in figure. The average speed of particle in time interval t=0 to t=8 s is

The correct option is B 5 m/saverage speed is v =total distancetotal timetotal distance is 40m and total time is 8sec v=408=5ms−1hence the B option is correct

The position (X)-time (t) graph for a particle moving along a straight line is shown in figure. The average speed of particle in time interval $t = 0$ to $t = 8 s$ is

The correct option is B $5 m / s$
average speed is v = $\frac{t o t a l d i s t a n c e}{t o t a l t i m e}$
total distance is 40m and total time is 8sec
$v = \frac{40}{8} = 5 m s^{- 1}$
hence the B option is correct