At t = 0, a particle leaves the origin with a velocity of 9.0 m/s in the positive y direction and moves in the xy plane with a constant acceleration of (2.0i− 4.0j) m/s2. At the instant the x coordinate of the particle is 15 m, what is the speed of the particle?
◦ 10 m/s
◦ 16 m/s
◦ 12 m/s
◦ 14 m/s
◦ 26 m/s