A particle moves in the xy plane with only an x-component of acceleration of `2m/s^2`. The particle starts from the origin at t = 0 with an initial velocity having an x-component of `8 ms^-1` and y-component of `–15ms^-1`. Velocity of particle after time t is :

Options

A. `[(8 + 2t)hati – 15hatj] ms^-1`
B. zero
C. `2thati + 15 hatj`
D. directed along z-axis.