The speed and direction of a moving object is called?

Answer 1

velocity
You mean, Velocity..

Velocity is the rate of change of displacement (position). It is a vector physical quantity; both magnitude and direction are required to define it. The scalar absolute value (magnitude) of velocity is speed, a quantity that is measured in meters per second (m/s or ms−1) when using the SI (metric) system.

I linked my source.
Speed in a specific direction is called velocity.

speed is a scalar unit whereas velocity is a vector unit.
Speed is the rate of change of position. In vector terms, speed is the magnitude of the velocity. (Velocity is speed and direction; speed is the velocity along a given direction.)

Answer 2

Because that's the formal definition of the word.

-- "30 miles per hour" is a speed.

-- "30 miles per hour north" is a velocity.

-- "30 miles per hour north" and "30 miles per hour east"

are the same speed but different velocities.

Answer 3

The speed and direction of a moving object is called its vector; velocity

Answer 4

what is the instantaneous speed a b or c or d or e

Answer 5

The speed and direction an object moves is its velocity.

Answer 6

That would be a vector. If the value was scalar then it would just have a magnitude but this has a magnitude and a direction so it is a vector.

Answer 7

velocity

Answer 8

Velocity

Answer 9

Velocity

Answer 10

Velocity