Question

9. Find the time taken by a train, of length 225 m, travelling at a speed of 54 km/h to cross (a) a tree near
the railway track, (b) a railway platform of length 585 m.

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Answer 1

Answer:

Length of train =225m

Speed of train=54km/h

[m-km=÷1000]

(a) time take to cross a tree=225÷1000=0.225

=0.225÷54

Time take to cross a tree=0.0041 hour

(b). Length of platform=585m

time take to cross a platform=585+225=810÷1000

=0.810÷54

Time take to cross a platform=0.015 hour