Question

a boy takes 5 sec to reach each point from A toB ,B to C, C to D .if AB=BC=CD=20m,find the speed from D to A

Answer 1

Hi friend!!

speed from D to A=total distance between A to D / total time

= 20+20+20/5+5+5

=60/15

=4m/s


I hope this will help u ;)

happy learning

Answer 2

Hi friend,

Speed = total distance/totaltime

Speed = 20+20+20/5+5+5

Speed =60/15

Speed = 4 m/s.

Hope this helped you a little!!!