### Formula

v

final speed

u

initial speed

a

a constant acceleration

Deltat

an time interval

v

final speed

u

initial speed

a

a constant acceleration

Deltat

an time interval

In kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity. The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Like velocity, speed has the dimensions of a length divided by a time; the SI unit of speed is the meter per second. In physics, acceleration is the rate of change of velocity with time

u

a

Deltat

v

Precision

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