Q .     A body starts from rest and moves with a uniform acceleration. The ratio of the distance covered in the `n^{th}` sec to the distance covered in `n\ sec` is:

BITSAT 2013
A

`\frac{2}{n}-\frac{1}{n^2}`

B

`\frac{1}{n^2}-\frac{1}{n}`

C

` \frac{2}{n^2}-\frac{1}{n}`

D

`\frac{1}{n}-\frac{1}{n^2}`

HINT

Distance covered in `n` seconds `= un+\frac{1}{2}an^2`

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