What is acceleration?Acceleration is the rate of change of the velocity of an object with respect to time. It is therefore a vector quantity, just like velocity. Meaning that it includes both a magnitude (size) and a direction.
InputKilometers Per Square Second is an acceleration unit equal to 1000 meters per square second.
Millimeters Per Square Second is an acceleration unit equal to 1/1000 of a meter per square second.