Question

A body travels 2m in 2nd second and 6m in the next four seconds. what will be the distance travelled in 9th second?

Answer 1

average speed = 2m+6m/2s+4s

                         = 4/3m/s

distance           = speed*time

                        = 4/3*9

                        = 12m/s

Answer 2

the body has been traveled around 9 m in 9th second