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What is the difference between speed and velocity?
A. Speed does not include time, but velocity does.
B. Speed does not include a direction, but velocity does.
C. Speed is used to calculate acceleration, but velocity is not.
D. Speed is used to calculate the rate of motion, but velocity is not.

Respuesta :

Jibzy
B - speed and direction are combined in another quantity, called velocity. It can be thought of as its speed in a particular direction. Speed is the corresponding scalar quantity, because it does not have a direction.

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