A particle of mass `9xx10^(-31)` kg having a negative charge of `1.6xx10^(-19)C` is projected horizontally with a velocity of `10^(6)ms^(-1)` into a region between two infinite horizontal parallel plates of metal. The distance between the plates is `d=0.3cm` and the particle enters 0.1cm below the top plate, THe top and bottom plates are connected, respectively to the positive and negative terminal of a 30V battery. Find the components of hte velocity of hte paricle just before it hits one of the plates.