give me the answer of the following question

Asked by  | 19th May, 2008, 06:55: PM

Expert Answer:

use the formula v2=u2 - 2as

where v is the final velocity which is zero

u is the initial velocity which is 72km/hr(convert into m/sec by multiplying by 5/18)

s is the distance which is 50m

and a is the retardation( -  sigh means the train is stopping. )

 

Answered by  | 23rd May, 2008, 11:58: PM

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