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Speed is a scalar magnitude (it only tells you how much). Velocity is composed of the object's speed and the direction in which it's moving. This corresponds to the definition of a vector.
Using "miles" and "hours" as an example:

  • "30 miles per hour (mph) " is a speed
  • "30 miles per hour (mph) north" is a velocity
  • "30 mph north" and "30 mph east" are different velocities with the same speed.
  • "30 mph north" and "35 mph north" are different velocities/speeds with the same direction.
  • If you add "30 mph" plus "30 mph", you get 60 mph ... maybe.
  • If you add "30 mph north" plus "30 mph south", you get standing still.
  • If you add "30 mph north" plus "30 mph east", you get 42.426 mph northeast, using vector calculations.

Therefore, when a vehicle travels on a winding road maintaining a speed of 30 mph, its speed remains the same but its velocity is changing with each turn.

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Q: How does an object's speed differ from its velocity?
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Related questions

How does velocity differ from speed?

Velocity indicates direction in addition to speed.


What is the difference an objects speed and an objects velocity?

Speed only tells how fast something is going, while velocity tells speed and direction.


What is a objects speed and direction?

Its called VELOCITY.


What is the difference between a objects speed and an objects velocity?

Velocity also includes direction.


What do you call it when an objects velocity changes?

A change in an objects velocity is called acceleration. Velocity is defined as an objects speed of travel AND its direction of travel. Acceleration can change only an objects speed, only its direction or both. If there is no acceleration acting on the object, then the velocity remains constant.


How do you measure an objects speed and direction?

Velocity


What describes an objects speed and its direction?

Velocity.


Is velocity an objects speed and direction of motion?

Velocity is an objects speed in a given direction e.g. a runner having run round a circular track of 400m in circumference has 0 velocity.


What is the difference of an objects speed and an objects volocity?

when you know both speed and direction of an objects motion you know the velocity of an object.


Consists of an objects speed and direction?

angular velocity


What includes the speed of the objects and the direction of its motion?

Speed and direction is called velocity.


How fast an object's position is changed over time is the object's is what?

speed How fast in which direction is velocity.