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A body starts from rest, what is the rat...

A body starts from rest, what is the ratio of the distance travelled by the body during the 4th and 3rd s?

A

`7//5`

B

`5//7`

C

`7//3 `

D

`3//7`

Text Solution

Verified by Experts

The correct Answer is:
A
Distance travelled in nth second –
`S_n = u+a/2 (2 n-1) = a/2 (2n - 1)`
`S_4/S_3 = (7a//2)/(5a//2) = 7/5`
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