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An objects speed at any particular moment in time is known as its instantaneous velocity. This is the rate of change or the derivative of the objects position.
the rate at which an object is moving at a given moment in time.
Speed. The equation to find speed is distance over time.
Derivative
That's the object's "speed". (NOT velocity.)
An objects speed at any particular moment in time is known as its instantaneous velocity. This is the rate of change or the derivative of the objects position.
the rate at which an object is moving at a given moment in time.
Speed. The equation to find speed is distance over time.
Instantaneous Speed.
Derivative
It is called speed Speed = Distance/Time
Average speed and instantaneous speed are both measurements of the speed of an object. The instantaneous speed measures how fast the object is going at a particular moment, while average speed shows how fast the object was moving in total over time.
the object's "speed".(not 'velocity')
the rate at which an object is moving at any given moment in time. from the physical science glossary
That's the object's "speed". (NOT velocity.)
Instantaneous speed cannot be measured because it is a theoretical construct. It is the speed that an object has at one particular moment, but measuring the speed of an object necessarily involves several moments so you can only measure the speed over some finite amount of time.
distance covered by the object per unit time is the speed of the object.