Define average velocity and average speed. When does the magnitude of average velocity become equal to the average speed?

Explanation

Average velocity: It is defined as the ratio of total displacement to total time taken
Average velocity
`(t o tal displacement)/(t otal time taken )=(x_2-x_1)/(t_2-t_1)`
Average velocity is independent of path followed by the particle. It just deals with initial and final positions of the body.
Averge speed: The ratio of total path length travelled to the total time taken is known as " average speed".
Speed and average speed are scalar quantities so no direction for these quantities.
Average speed `=(Total path l eng th )/(Total time i n t erval)`
When the body is along with the striaght line its average velocity and average speed are equal.