The electric potential varries in space according to the relation V= 4x+3y . A particle of mass 1 kg starts from rest from point $\;(8 , 3.9 m )\;$ under the influence of this field . Find the velocity of the particle when it crosses the y - axis . The charge on the particle ic $\;+1 \mu C$ .

Question

$(a)\;10^{-3} m/s\qquad(b)\;10^{-2} m/s\qquad(c)\;10^{-1} m/s\qquad(d)\;10^{-4} m/s$