Find the time taken by a train, of length 270 m, travelling at a speed of 45
km/h to cross.
[6]
(a)
a post near the railway track.
(b)
a railway platform of lengthy 405 m
(c)
another train 225 m long moving at 36 km/h in the opposite direction.
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Given, Distance =270m=0.270 km
Speed =45 km/hr
=45/3600 km/sec
∴ Time =
Speed /Distance
= 0.270/45×3600
21.6 sec
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