When an object moves at the same speed throughout its journey, the object is said to be travelling at a constant speed. 
However, in real-life situations, it is very unlikely or difficult to travel at a constant speed for any journey as we may travel at varying speeds for different parts of the journey. 
Thus, average speed is a more practical way of defining speed i.e. the total average distance travelled per unit time. 
$\mathrm{Average \ Speed = }\frac{\mathrm{Total \ Distance \ Travelled}}{\mathrm{Total \ Time}\mathrm{ \ Taken}}$

When an object moves at the same speed throughout its journey, the object is said to be travelling at a **constant speed**.

However, in real-life situations, it is very unlikely or difficult to travel at a constant speed for any journey as we may travel at varying speeds for different parts of the journey.

Thus, **average speed** is a more practical way of defining speed i.e. the total average distance travelled per unit time.

$\mathrm{Average \ Speed = }\frac{\mathrm{Total \ Distance \ Travelled}}{\mathrm{Total \ Time}\mathrm{ \ Taken}}$

Average Speed

Average Speed

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