An asteroid heads for Earth at 12 km/s. In addition, a NASA space team is able to attach a rocket booster to the asteroid, which then allows the asteroid to move at 28 degrees to its original path to a speed of 20km/s. What is its average accleration for acceleartion at (x) and acceleartion at(y).

For acceleration (x) I got 12.9 m/s^2,but I am not sure about that or acceleartion at (y). Any help would be greatly appreciated.