PhysicsMedium65×since 2002Q7885A particle is moving with speed v = bx\sqrt xx along positive x-axis. Calculate the speed of the particle at time t = τ\tauτ(assume that the particle is at origin t = 0)Ab2τ2{{{b^2}\tau } \over {\sqrt 2 }}2b2τBb2τ{{b^2}\tau }b2τCb2τ2{{{b^2}\tau } \over 2}2b2τDb2τ4{{{b^2}\tau } \over 4}4b2τCheck answerSkip