Question

what is mean by speed

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Answer 1

SPEED

Speed most often describes acceleration or a high rate of motion. 

Answer 2

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Speed most often describes acceleration or a high rate of motion. ... As a verb, it means to “move along quickly,” like how you speed around on your bike. A fun fact: while speed refers to the distance traveled by an object during a specific amount of time, velocity describes that distance, but in a specified direction.