A particle located at \( x=0 \) at time \( t=0 \), starts moving P ...

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A particle located at \( x=0 \) at time \( t=0 \), starts moving
P along the positive \( \mathrm{x} \)-direction with a velocity ' \( v \) '

W which varies as \( v=\alpha \sqrt{x} \), then velocity of particle varies with time as: ( \( \alpha \) is a constant)
(1) \( v \propto t \)
(2) \( v \propto t^{2} \)
(3) \( v \propto \sqrt{t} \)
(4) \( v= \) constant
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