Question

define speed and volacity​

Answer 1

Speed is distance covered in a unit time.

Velocity is speed with a definite direction i.e., displacement in a unit time

Answer 2

Speed is defined as the rate of change in distance with respect to time. Velocity is defined as the rate of change in displacement with respect to time. Notice the words distance and displacement are the only difference between the two definitions.

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explanation:

Speed is a matter of how fast an object is moving regardless of the direction it's going, whereas velocity is a matter of how fast an object gets somewhere with respect to direction. Think of a person repeatedly taking two steps forward and then two steps back. They are moving, but they're not getting anywhere. In other words, they have speed, but no velocity. In short, speed is a measure of how fast an object moves, while velocity is a measure of how fast an object gets somewhere.