Why does (second)$^{2}$ occur in the unit of acceleration ?
Why does (second)$^{2}$ occur in the unit of acceleration ?
Acceleration $=\frac{\text { Change in velocity }}{\text { Time taken }}$
Unit of velocity and time is metre per second and second respectively. So Unit of acceleration
$=\frac{m s^{-1}}{s}=m s^{-2}$
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