Kemal G. answered 05/11/17
Tutor
4.8
(5)
Patient and Knowledgeable Math and Science Tutor with PhD
Hi Keshav,
Acceleration is the rate of change in velocity. You can find it by dividing the change in velocity over the same time interval the velocity changes.
a = (72-54) / 15
= 18 kmph /15 sec
= 5 m/sec / 15 sec
= 0.3 m sec^-2