Editing Metre per second squared (section)

==Related units==
[[Newton's second law]] states that force equals mass multiplied by acceleration.
The unit of force is the [[newton (unit)|newton]] (N), and mass has the SI unit [[kilogram]] (kg). One newton equals one [[kilogram]] metre per second squared. Therefore, the unit metre per second squared is equivalent to newton per kilogram, N·kg<sup>−1</sup>, or N/kg.<ref>Kirk, Tim: ''Physics for the IB Diploma; Standard and Higher Level'', Page 61, Oxford University Press, 2003.</ref>

Thus, the Earth's gravitational field (near ground level) can be quoted as 9.8 metres per second squared, or the equivalent 9.8&nbsp;N/kg.

Acceleration can be measured in ratios to gravity, such as [[g-force]], and [[peak ground acceleration]] in earthquakes.