Two particles each charged with a charge +q are clamped on they axis at the points (0, a) and (0, - a). If a positively charged particle of charge `q_(0)` and mass m is slightly displaced from origin in the direction ofnegativex-axis.
(a) What will be its speed at infinity?
(b) If the particle is projected towards the left along the x-axis from a point at a large distance on the right of the origin with a velocity half that acquired in part (a), at what distance from origin will it come to rest ?
`[sqrt((2Kqq_(0))/(ma)),sqrt(15)a]`