Question

An object moves 18 in the first 3 s, 22 m in the next 3 s and 14 m in the last 3 s. what is it's average speed?

Answer 1

Total Distance=18+22+14=54m
Total Time=3+3+3=9seconds
$average \: speed = \frac{total \: distance}{total \: time} \\ = \frac{54}{9} = 6$
So, average speed is 6m/s.

Answer 2

hey mate, here is ur answer :)
hope it helps u... sorry by mistake i written 5 m^2 but it is 6m^2