difference between speed and velocity
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Difference Between Speed And Velocity
Sl. No.
Differentiating Property
Velocity
Speed
1
Definition
Velocity can be defined as the rate at which an object changes position in a certain direction.
The rate at which an object covers a certain distance is known as speed.
2
Type of quantity
Vector quantity
Scalar quantity
3
Magnitude
Velocity can be zero, negative, or positive.
Speed can never be negative or zero.
4
Change of direction
The velocity of the object changes with the change in direction, therefore the object must follow one direction.
The average speed will continue to count even if the object change direction.
5
Change with time
Velocity can decrease with time. For a moving object, it can be 0.
Speed never decreases with time. For a moving object, it is never 0.
6
Interrelation
An object may possess different velocities but the same speed.
Speed may or may not be equal to velocity.
7
Unit (SI)
Velocity is measured in m/s
Speed .
a
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Have you ever wondered, why different objects travel the same distance, taking different amounts of time? This is because some objects are faster than others. You can calculate the rate of motion of a body, by determining the distance covered by an object in a given interval of time, i.e. speed. The term ‘speed’ is often misconstrued with the ‘velocity’, because of having similar applications. However, these two are very different concepts of motion, in physics.
Velocity measures the distance travelled by an object concerning direction. As these two concepts move around the measurements related to the motion of the body, it is important to know the difference between speed and velocity.
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