The formula is s a b 2 displaystyle sfrac ab2 where s displaystyle s equals the average speed a displaystyle a equals the speed for the first half of the time and b displaystyle b equals the speed for the second half of the time. The formula looks like this. V is the average speed of the object with units of ms d is the total distance or length of the path of the object with units of m t is the total time taken to cover the path with units of s.
Average Speed Formula Derivation.
When acceleration is a constant the average speed can be plugged into the. The formula for average speed is found by calculating the ratio of the total distance traveled by the body to the time taken to cover that distance. The expression of the formula for average speed takes place as follows. It can also be expressed as the time derivative of the distance traveled.