The biggest difference between speed and velocity is that velocity also
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Speed:

1.Rate of change of distance with time.

2.Scalar quantity

3.It indicates rapidity of object

4.When the body returns to its initial position, speed will not be zero

5.Speed can never be negative

Velocity:

1.Rate of change of displacement of a body with time

2.Vector quantity

3.Along with rapidity, it indicates direction of a object

4.When the body returns to its initial position, velocity can be zero

5.Speed can never be negativeIt can either be negative or positive, sometimes zero

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