## Why is acceleration measured in m/s per second?

Question

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## Answer ( 1 )

Acceleration is defined by A = dV/dT the change in velocity dV over some period of time dT.

So the m/s comes from the change in velocity dV. And the per second is dT the interval over which that velocity changed.

EX: Suppose the velocity changes 9.8 m/s over a period of 1 second. Then A = dV/dT = 9.8 m/s//1 s = 9.8 m/s^2. meters per second squared is the more common way of annotating acceleration.