If speed is measured in meters per second and time is measured in second, the unit of acceleration is

meters per second squared or meters per second per second

Explanation:

If speed is measured in meters per second and time is measured in second, the unit of acceleration is "meters per second squared or meters per second per second."

To illustrate better, speed is measured in meters per second = m/s, while time is measured in second = s.

Hence, the unit of acceleration is m/s². This implies that acceleration is the number of meters per second the velocity changes every second.

gas and liquid