Question

What is called Velocity?​

Answer 1

Explanation:

The time average of the velocity of a fluid at a fixed point, over a somewhat arbitrary time interval T counted from some fixed time t0. For example, the mean velocity of the u component is. The time average of any other quantity can be defined in this manner.

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Answer 2

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The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is a physical vector quantity; both magnitude and direction are needed to define it.

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