Question

A boy running in a straight line incress his velocity from 12km/hr to 20km/hr in 20 sec. Find his average acceleration.

Answer 1

Answer:

here is ur answer

acceleration =change in velocity /time

first let's convert velocity to m/s

12km/hr=12×5/18=10/3m/s

20km/hr=20×5/18=50/9m/s

acceleration =50/9-10/3/20

=20/9/20=1/9

so acceleration is 1/9 m/s^2

hope it helps

#vinay ❤