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A body start from rest with uniform acceleration.Its velocity after 2n second is v. The displacement of the body is last n second is...

A body start from rest with uniform acceleration.Its velocity after 2n second is v. The displacement of the body is last n second is...

Grade:11

1 Answers

Vikas TU
14149 Points
7 years ago
Hi,
I have already answered this question. pls check your Account profile.
However,
the answer 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) meter

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