Q 11-02-136NEETNEET 2022Top questionEasy
The displacement-time graphs of two moving particles make angles of $30°$ and $45°$ with the $x$-axis as shown in the figure. The ratio of their respective velocity is
Answer: (A) $1 : \sqrt{3}$
Velocity = slope of the displacement-time graph = $\tan\theta$.
$$\frac{v_1}{v_2} = \frac{\tan 30°}{\tan 45°} = \frac{1/\sqrt{3}}{1} = 1 : \sqrt{3}$$
Solution by Sreeraj P, M.Sc Physics