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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