Question

why average speed is not average of speeds that is average speed=intial speed + final speed/time​

Answer 1

Explanation:

Then the unit of speed will change

The new unit of speed will be metre per second square which is never possible.

Answer 2

Explanation:

the unit of speed is m/s (cgs system)

if average speed=intial speed + final speed/time

unit of speed will be =(m/s)/s

=m/s^2

so average speed is not average of speeds that is average speed=intial speed + final speed/time