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If a train travelling at 36kmph is brought to rest in 400m what is the retardation?

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If a train travelling at 36kmph is brought to rest in 400m what is the retardation?
posted Oct 29, 2018 by Krishanveer Singh

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1 Answer

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v^2 - u^2 = 2 a s
now it is given
v = 0
u = 36kmh or 36*5/18 = 10 mps
a = ?
s = 400
=> -100 = 2 a 400
=> a = - 1/8

so retardation is 1/8 meter per secound square.

answer Oct 29, 2018 by Salil Agrawal
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