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body start from rest with uniform acceleration.Its velocity after 2n second is v. The displacement of the body in last n second is
For nth second eqn. of displacement is:S = u + (a/2)*(2n-1)from rest u = 0.S = (a/2)*(2n-1)......................(1) in last n second.acccelration after 2n second, a = v/2n.............(2)put (2) eqn. in eqn. (1) we get,S = (v/2n) (2n-1) m.
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