Question

an electric train is moving with a velocity of 120 km/h .how much distence will it cover in 30 second

Answer 1

firstly you have to convert speed into m/s
120*5/18
v=100/3m/s
distance =speed*time
100/3*30
hence distance =100m=0.1km

Answer 2

Hey friend

Here is your answer

GIVEN :

velocity (v)
=120km/h
=120×1000/60×60
= 100/3 m/s

time(t)=30s

WE KNOW THAT :

velocity =distance /time

v=s/t

100/3=s/30

s=(100×30)/3

s=1000m

s=1km

HOPE THIS HELPS YOU ☺