A particle of mass m and charge `-q` is projected from the origin with a horizontal speed v into an electric field of intensity E directed downward. Choose the wrong statement. Neglect gravity

Options

A. The kinetic energy after a vertical displacement `y` is qEy
B. The horizontal and vertical components of acceleration are `a_(x) = 0,a_(y) =(qE)/(m)`
C. The equation of trajectory is `y = (1)/(2) ((qEx^(2))/(mv^(2)))`
D. The horizontal a time `t` x = vy and `y = (1)/(2)a_(y)t^(2)`

Answer

A