Math and Arithmetic
Physics
Geometry

In what unit is velocity measured?

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November 29, 2012 6:26PM

Velocity is the ratio of two fundamental physical quantities: distance and time, and is

computed as the distance an object moves divided by the time in which it moves. In

SI units distance is measured in meters, and time in seconds. Therefore in SI units

velocity is measured in meters/sec. However velocity can be measured in any units

of distance per time: miles/hour, inches/year, micrometers/decade. As long as you

have a unit of distance in the numerator and a unit of time in the denominator you

have an acceptable unit for velocity.

So far, to this point, what you have is the size of the velocity, also called "speed".

To make a velocity out of a speed, you must indicate the direction of the speed.