D distance meters m t timesec s D short form for the change DD short form for the change in distance. 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. S avg DDDt.
Speed in the first hour 30 miles hour.
It is the distance covered divided by time. Average speed is a rate that is a quantity divided by time taken to get that quantity. 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. D distance meters m t timesec s D short form for the change DD short form for the change in distance DD D 1 D 2 D 3 D n.