0
Velocity is a vector, so you simply use vector properties, noting that speed is a magnitude of velocity. For example:
If velocity is (8x, -4y),
then the speed is:
sqrt(8^2+4^2) = sqrt(68) (by Pythagoras)
and the direction is:
tan(A) = -4/8
A = arctan (-1/2) = -26.56 degrees (or 333.43 degrees)
``````````^y````````````````
``````````|`````````````````
``````````|`````````````````
``````````|`````````````````
``````````|`````````````````
``````````|`````````````````
___________________________> x
`````````0|`\`ang A```````|```
``````````|```\``````````8```
``````````|`````\````````````
``````````|```````\``````````
``````````|`````````\````````
``````````|```````````\``````
``````````|_ -4``````````\```
``````````|`````````````````
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Is speed equal to velocity?
Velocity is a vector, which means it has a direction, but speed isn't. Speed is the absolute value of velocity. Velocity can be negative, meaning that the speed is opposite to the direction that you're calling the positive direction.
Why is velocity and speed same unit?
Velocity is speed, plus an indication of direction. To indicate a velocity, you can indicate a speed (this will logically use units of speed), and a direction.
How do you find speed if you know the velocity?
Velocity is speed and direction
What does the velocity include that the speed does not?
Direction. Velocity is a vector, speed is a scalar.
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 is speed in a given direction is called?
Speed in a given direction is velocity.
What is speed in a given direction?
Speed in a given direction is called velocity.
Velocity describes both?
speed and direction
How is velocity different from average speeed?
Velocity is speed and its direction. Average velocity is average speed and its direction.
Diffetiate speed and velocity?
Speed has no direction, velocity does.
The speed of an object and the direction of its motion?
the object's 'velocity'
What is speed in given direction?
The amount of speed in a given direction is the 'component' of speed in that direction. The total amount of speed AND the direction of the total speed is the 'velocity' of the moving object.
What Has Direction Speed or Velocity?
Velocity.
Is speed equal to velocity?
Velocity is a vector, which means it has a direction, but speed isn't. Speed is the absolute value of velocity. Velocity can be negative, meaning that the speed is opposite to the direction that you're calling the positive direction.
What describes the direction and speed of an object?
Velocity describes the speed and direction of an object.velocityvelocity
What describes both speed and direction?
Velocity describes both the speed and direction an object is moving.
Velocity is the change of speed and direction of an object?
No. Velocity is the present speed and direction of motion.If speed or direction changes, then that's 'acceleration'.
