Question

Velocity of a train increases uniformly from 20 kilometre per hour to 60 km per hour in fourth are the distance travelled by the train during this period is

Answer 1

Explanation:

Here

intial velocity u= 20 km /hr=5.56 m/s

final velocity v=60 km/hr=16.67 m/s

the train is under uniform accerleration

t=0.2 hr=12 minutes=720 secs

a=v-u/t=0.0154 m/s²

s=ut+(1/2)at²=7994.88 m=7.99488 km.Mark as Brainliest