what is velocity explain
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VELOCITY
Velocity is a vector expression of the displacement that an object or particle undergoes with respect to time . The standard unit of velocity magnitude (also known as speed ) is the meter per second (m/s). Alternatively, the centimeter per second (cm/s) can be used to express velocity magnitude.
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Suppose you are driving a car and you overtake the other car from behind. What actually happens is that the driver from the car behind you sees the car coming in the backward direction and eventually goes back. But the person standing on the ground doesn’t see it as the car is moving backwards, although the driver behind sees it that way. This is what relative velocity is.
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