A ball of mass 1 gm and charge `10^(–8) c` moves from a point A, where the potential is 600 volt to the point B where the potential is zero. Velocity of the ball of the point B is 20cm/s. The velocity of the ball at the point A will be .....
Options:
(a) `16.8 m/s`
(b) `22.8 (cm)/s`
(c) `228 (cm)/s`
(d) `168 m/s`