JEE PYQ: Motion In One Dimension Question 30
Question 30 - 2019 (12 Apr Shift 2)
A particle is moving with speed $v = b\sqrt{x}$ along positive $x$-axis. Calculate the speed of the particle at time $t = \tau$ (assume that the particle is at origin at $t = 0$).
(1) $\frac{b^2\tau}{4}$
(2) $\frac{b^2\tau}{2}$
(3) $b^2\tau$
(4) $\frac{b^2\tau}{\sqrt{2}}$