Answer:
Speed:
- distance per time
- 400 km/h
- a scalar quantity
Velocity:
- a vector quantity
- 20 m/s south
- displacement per time
Explanation:
Speed represents a scalar quantity. It has magnitude which measures the intensity of an object, but it does not specify its direction. Therefore, speed should not have any distance correlated with it.
Velocity represents a vector quantity. It has magnitude along with a direction which can be shown by the example of 20 m/s south. It gives the speed of 20 m/s, but also specifies which direction it is going in. The velocity of an object is its displacement per unit time
