Differentiate speed and velocite
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Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.
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Speed
- Definition:- The rate at which an object covers a certain distance is known as speed.
- Type of quantity:- Scalar quantity
- Magnitude:- Speed can never be negative or zero.
- Change of direction:- The average speed will continue to count even if the object changes direction.
- Unit(SI):- Speed is measured in m/s
- Interrelation:- Speed may or may not be equal to velocity.
- Examples:- A sports bike travelling at 50 m/s would go from 0 m/s to 30 m/s, before reaching 50 m/s and could even reach 70 m/s. However, the average speed will be the speed of the bike.
Velocity
- Definition:- Velocity can be defined as the rate at which an object changes position in a certain direction.
- Type of quantity:- Vector quantity
- Magnitude:- Velocity can be zero, negative, or positive.
- Change of direction:- The velocity of the object changes with the change in direction, therefore the object must follow one direction.
- Unit(SI):- Velocity is measured in m/s
- Interrelation:- An object may possess different velocities but the same speed.
- Examples:- A train going towards the south direction with an average speed of 50 km/h will have a velocity of 50 km/h, north. An object going straight in a particular direction is considered to have velocity.
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