Question

We use the idea of speed to distinguish
between and objects.​

Answer 1

Answer-

Velocity is a vector quantity—when giving the velocity we must specify the magnitude (the speed) and the direction of travel. For example you might... The short answer is that velocity is the speed with a direction, while speed does not have a direction. Speed is a scalar quantity—it is the magnitude of the velocity.

Answer 2

Explanation:

While speed calculates the rate of change of distance, magnitude calculates the rate of change of displacement. Speed indicates the rapidity of the moving body. Conversely, velocity represents the rapidity and position of the moving object. As distance can never be negative, the speed too can never be negative.

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