SI unit of acceleration is metre per second squared (m/s²)
Acceleration is a vector quantity that represents the rate of change of velocity with respect to time. In the International System of Units (SI), the unit of acceleration is meters per second squared (m/s²).
Mathematically, acceleration (a) is defined as the change in velocity (Δv) divided by the change in time (Δt), and this is expressed as:
a = Δv/Δt
Therefore, if the velocity changes by 1 meter per second over a time interval of 1 second, the acceleration would be 1 m/s². The unit of acceleration reflects this change in velocity per unit of time and is a crucial concept in physics, describing how quickly an object is speeding up or slowing down.