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There are many instruments for measuring speed but I am not aware of any for measuring velocity.
light speed:)
Speed = (distance covered) divided by (time to cover the distance) Speed = (magnitude of acceleration) multiplied by (time the acceleration has acted)
Consult Maxwell's Equations. It is derived from electrical and magnetic constants.
A ruler and a calculator. Or a math text book.
An anemometer is used for measuring the speed of wind,
speed camaras, lasers ,
There are many instruments for measuring speed but I am not aware of any for measuring velocity.
For measuring wind speed
There are many ways quadratic equations are used in the real world. These equations are used to calculate area, speed and profit
speed=distance/time. velocity=distance/time+direction.
Anemometer
Speedometer
tachometer.
Table clock
light speed:)
CAS and RAS Latency are two ways of measuring speed