Too simple
Force (10N) is equal to mass (2kg) times acceleration.
A Newton (N) can also be described in si units by (kg*m)/s^2 so when you divide by kg you are left with m/s^2 (meters/seconds^2,) which is an acceleration.
Simply divide 10 by 2 to get 5 and the answer is 5 meters per second squared.
