Velocity defines the direction of the movement of the body or the object. Speed is primarily a scalar quantity. Velocity is essentially a vector quantity. It is the rate of change of distance. It is the rate of change of displacement.
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Velocity
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Facts About Velocity
Galileo was the first person to try to measure the speed of light.
The speed of light is 186,282 miles per second.
The speed of sound is 343.2 meters per second.
A particular black hole in the galactic center of the NGC 1365 Spiral Galaxy is rotating at a speed of 84 percent of the speed of light.
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