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What will be the ratio of the distance moved by a freely falling body from rest in 4th

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Options

(a) 4 : 5
(b) 7 : 9
(c) 16 : 25
(d) 1 : 1

Correct Answer:

7 : 9

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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  • By using,
    Snth=u+a/2 (2n-1)=0+a/2 (2×4-1)=7a/2
    Again,s=u+a/2 (2n-1)=0+a/2 (2×5-1)=9a/2
    Now,S1:S2=7a/2:9a/2=7:9

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