Two trains 200 m and 150m long are running in parallel rails at the rate of 40kmph and 45kmph respectively. If they are running in same direction . what distance the longer train moves during crossing
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ANSWER:
Time taken by longer train to cross to slower train is given by:
a+b/v-u,where a andb are lengths of the train and v and u are speed of trains.
T=0.2+.15/45-40.=0.7
Distance travelled by longer train after crossing slower train =speed *time.
D=relative speed(45-40)*0.7
D=5*0.7.
D=3.5kms(3500m).
Time taken by longer train to cross to slower train is given by:
a+b/v-u,where a andb are lengths of the train and v and u are speed of trains.
T=0.2+.15/45-40.=0.7
Distance travelled by longer train after crossing slower train =speed *time.
D=relative speed(45-40)*0.7
D=5*0.7.
D=3.5kms(3500m).
Answered by
1
Explanation:
relative velocity=d/t
(45-40)kmph=350/t metres
5×5/18=350/t
t=252seconds.
distance of longer train d=Vr×t
d=40×5/18×252
d=2800 m
pls mark it as brainlist answer..
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