Question

An electric train is moving with a velocity of 120 km/h. How much distance will it move in 30 sec ?

Answer 1

Given:
Speed=120KM/h=120×5/18 m/s
Time =30 sec
Speed= Distance/ time
Distance= speed x time
= 120x5x30/18
=1000m
THEREFORE, DISTANCE COVERED IS 1000m

Answer 2

Given:
Velocity = 120 km/h

Time= 30 sec

Change km/h into m/sec

[ 1km= 1000m   ,        1hr= 3600sec]

velocity = (120*1000)/ 3600 = 100/3 m/sec

Velocity = 100/3 m/sec

Distance= velocity *time

Distance= (100/3) *30= 1000 m
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Answer
Distance = 1000m
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Hope this will help you....