Q: How do you describe a vector?

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The number.

Its directiondirection

A vector could describe a something physical like a force or velocity or acceleration or torque for example. The units would be part of the magnitude of the vector. For example, the wind is blowing South at 10 mph. The magnitude is 10 miles per hour.

Because to completely describe it you must know both how strong it is (magnitude) and in what direction it points.

Units that are used for measures in which the direction is relevant. Example are displacement, velocity, acceleration, force.

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The number.

It is a vector that describes a force.A force has both a magnitude and a direction, so it's appropriate to describe it with a vector.

No, the magnitude of a vector is the length of the vector, while the angle formed by a vector is the direction in which the vector points relative to a reference axis. These are separate properties of a vector that describe different aspects of its characteristics.

speed and direction

can't you find it on your own??

Mass is a scalar quantity, as it only requires a magnitude to describe it. Acceleration is a vector quantity, as it involves both magnitude and direction to fully describe it.

Its directiondirection

The three ways to describe a displacement vector are its magnitude (length), direction (angle or orientation), and starting and ending points in space. By specifying these three components, the full description of a displacement vector can be provided in three-dimensional space.

A vector could describe a something physical like a force or velocity or acceleration or torque for example. The units would be part of the magnitude of the vector. For example, the wind is blowing South at 10 mph. The magnitude is 10 miles per hour.

The vector 100 ms down could also be described as a vector in the negative y-direction with a magnitude of 100 ms.

To describe a vector quantity, you need both magnitude (size) and direction. This information can be represented using components along different axes or as a magnitude and an angle relative to a reference direction.

Use SOHCAHTOA, then cross multiply and divide.