Question

Velocity time graph of two autodrivers. Mohan and Sohan are shown in the following figure. Then during 20 minutes of driving
Options are attached
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Answer 1

Answer:

c) is the correct ans, may be not sure

Answer 2

c) Displacement of Mohan is more than that of Sohan.

Explanation:

In the velocity versus time curve the area under the curve is the total displacement of the body during the observed time.

So here we have area for Mohan's motion:

$A_m=\frac{1}{2}\times (10+30)\times \frac{20}{60}$

$A_m=\frac{20}{3}=6\frac{2}{3}\ km$

The displacement of Sohan:

$A_s=\frac{1}{2}\times \frac{20}{60}\times 30$

$A_s=5\ km$

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TOPIC: velocity- time graph

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