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  4. A body falling from rest describes distances S1, S2, S3 in first, second and third second of fall, the ratio of S1: S2: S3 is

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Q. A body falling from rest describes distances $S_1, S_2, S_3$ in first, second and third second of fall, the ratio of $S_1 : S_2 : S_3$ is _____

KCETKCET 1997Motion in a Straight Line

Solution:

Using $S_n = u + \frac{1}{2} a(2n - 1)$, we get,
$S_n \propto (2n - 1)$ in the given case = $S_1 : S_2 : S_3 :: 1 : 3 : 5$