Metre per second squared

Metre per second squared (m/s²) is the SI derived unit of acceleration. It describes a velocity change of one metre per second during each second.

Acceleration: Acceleration is the rate at which an object's velocity changes over time. Metres per second squared measure this change in velocity per unit time.
Dimensional analysis: Dimensional analysis uses physical dimensions to check equations and relationships between quantities. It verifies that acceleration has dimensions of length divided by time squared.
Gravitational acceleration: Gravitational acceleration is the acceleration produced by gravity near a celestial body's surface or in its field. Earth's near-surface gravitational acceleration is commonly expressed in metres per second squared.
Galileo (unit): The galileo is a non-SI unit of acceleration equal to one centimetre per second squared. It measures the same quantity on a scale one hundredth of a metre per second squared.
Velocity: Velocity is the rate and direction of an object's change in position. The unit describes how much velocity changes each second.
Velocity-time graph: A velocity-time graph plots velocity against elapsed time. Its slope gives acceleration in metres per second squared when axes use SI units.
Free fall: Free fall is motion under the influence of gravity alone. Near Earth's surface, its velocity changes by about 9.8 m/s each second.
Standard gravity: Standard gravity is a conventional acceleration value of exactly 9.80665 metres per second squared. It is a reference acceleration, not a different unit.
Metre: The metre is the SI base unit of length. It supplies the distance unit in the numerator.
Derivative: A derivative measures the instantaneous rate of change of a function. Acceleration is the time derivative of velocity.

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