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Question

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

A
4:5
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B
7:9
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C
16:25
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D
1:1
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Solution

The correct option is B 7:9
Distance moved in 4th secondDistance moved in 5th second

s4s3s5s4
where, s=12gt2
So, required ratio
=42325242=79

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