At T = 0,a Particle Leaves the Origin with a Velocity

Multiple Choice

At t = 0,a particle leaves the origin with a velocity of 12 m/s in the positive x direction and moves in the xy plane with a constant acceleration of $( - 2.0 \tilde { \mathbf { i } } + 4.0 \tilde { \mathbf { j } } ) \mathrm { m } / \mathrm { s } ^ { 2 }$ .At the instant the y coordinate of the particle is 18 m,what is the x coordinate of the particle?

A) 30 m
B) 21 m
C) 27 m
D) 24 m
E) 45 m