nickname2514
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Which statement about the positive and negative value of speed compared to velocity is true?


A. Velocity in one dimension always has a negative value, while speed always has a positive value.


B. Velocity and speed in one dimension both have positive and negative values


C. Speed in one dimension may be positive or negative, while velocity always has a positive value.


D. Velocity in one dimension may be positive or negative, While speed always has a positive value.

Respuesta :

Its kinda hard to anwser this question but i hope this helps Velocity is a vector quantity. It has a (positive) magnitude and a direction. For one-dimensional motion, this can be represented as a one-dimensional vector, which looks just like a positive or negative number. A negative number indicates motion in the direction of the negative axis.

znk

Answer:

D. Velocity in one dimension may be positive or negative, while speed always has a positive value.

Explanation:

Velocity is the rate at which an object changes position in a specific direction. It has both magnitude and direction.

For example, travelling southeast at 90 km/h is a velocity. It gives both speed and direction.

Velocity is a vector. If your velocity is 90 km/h in one direction, it is -90 km/h in the opposite direction.

Travelling at 90 km/h is a speed. It does not give direction, so it is always positive.

A. Wrong. Velocity has both positive values.

B. Wrong. Speed has only positive values.

C Wrong. Speed has only positive values.

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