JEE Main 2019 — Physics solution | Fundamenthol

JEE Main2019Physics

Q.

A particle is moving with speed $v = b x$ along positive x-axis. Calculate the speed of the particle at time t = $τ$ (assume that the particle is at origin at t = 0).

A
$b^{2} τ$
B
$\frac{b ^{2} τ}{4}$
C
$\frac{b ^{2} τ}{2}$
D
$\frac{b ^{2} τ}{2}$

Solution

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