Please answer

Asked by ubedullah | 17th Oct, 2009, 02:54: PM

Expert Answer:

Speed of train with boy=54 km/h=15 ms-1

Speed of  other train=36 km/h=10 ms-1

Time taken in reference frame of boy,t=100/relative speed=100/(15-(-10))=100/25=4 s

Answered by  | 17th Oct, 2009, 11:20: PM

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