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Because velocity has a direction but speed does not. A vector has both a numerical value and a direction but a speed has only a numerical value and therefore it can't be represented by a vector.
What else can I help you with?
How is velocity diffrent from speed?
Velocity is a vector, and so it has two components -- magnitude (speed) and direction. Speed is a scalar, and it is the magnitude of velocity, a vector.
Which is vector speed or velocity?
"Speed" is a scalar; "velocity" is a vector.
What does the velocity include that the speed does not?
Direction. Velocity is a vector, speed is a scalar.
When we subtract a velocity vector from another velocity vector the result is?
The result of subtracting one velocity vector from another velocity vector is a new velocity vector. This new vector represents the difference in speed and direction between the two original velocity vectors.
What is the Velocity of speed?
Velocity is the vector form of speed. It is the speed of an object in a specified direction.
What are facts about speed?
speed is not a vector. Velocity is a vector. speed can also be used for angular velocity (which is a vector). Speed is sort of a catch all word that can cover all poorly defined velocities.
What the significant similaritries and difference between speed and velocity?
Velocity is a vector. It is characterized by its magnitude and direction. The magnitude of the velocity vector is the speed. Speed is only a numerical value, it has no direction. Velocity vector can be broken down into its components while speed, being just a number, has no components.
Is Speed is a vector quantitys?
Speed is not a vector quantity, because it has no direction. When you combine speed with a direction, then you have a vector, called "velocity".
Velocity includes speed and?
Velocity is defined as speed in a certain direction, or vector.
Is constant speed constant velocity?
No. Velocity includes a direction vector, which speed does not have.
Which is a vector quantity speed or velocity?
Velocity is a vector quantity because it includes both the speed of an object and its direction of motion. Speed is a scalar quantity because it only represents the magnitude of motion without direction.
Can a velocity of a body change its speed is constant?
No. A body with constant velocity is either stationary or going at constant speed in a constant direction. The usual interpretation of speed and velocity goes like this. A velocity is a vector with magnitude and direction. The magnitude is usually called its speed. Changing a speed must change the length of the vector and changing the length of the velocity vector has to change the velocity.
