Here's the breakdown of acceleration units in MKS and CGS systems:

MKS (Meter-Kilogram-Second) System:

* Unit: meters per second squared (m/s²)

CGS (Centimeter-Gram-Second) System:

* Unit: centimeters per second squared (cm/s²)

Explanation:

Acceleration is the rate of change of velocity over time. Velocity is measured in units of distance per time (like meters per second or centimeters per second), and time is measured in seconds. Therefore, acceleration is expressed as:

* Distance/Time / Time = Distance/Time²

This is why acceleration is measured in units of distance per time squared.