Question

Study the $v-t$ graph given here, plotted for a particle of mass $50\text{g}$. In which period will it have the maximum force?

• A. $P$
• B. $Q$
• C. $R$
• D. None of these

Answer 1

The correct option is A $P$


Force is given by,

$F=ma$

Therefore, we can say that $F$ is maximum when $a$ is maximum.

Acceleration $\left(a\right)$ is equal to the slope of $v-t$ curve.

From the given graph, slope is maximum in region $P$.

So, $a$ is also maximum in region $P$.

Therefore, $F$ is also maximum for $P$.

​​​​​​​Hence, option $\left(A\right)$ is the correct answer.