Two balls of charges `q_(1)` and `q_(2)` initially have a velocity of the same nagnitude and direction. After a unform electric field has been applied for a certain time. The direction of the first ball changes by `60^(@)` and the velocity magnitude is reduced by half. The direction ofvelocity of the second ball changes by `90^(@)`. In whata ratio will hte velociyt of the second ball change? Determine, the magnitude of the charge to mass ratio of the ball if it is equal to `alpha_(1)` for the firt ball. Ignore the electrostatic interactin between the balls.
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