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Question

A body falls from a height h=200 m.The ratio of distance travelled in each 2sec during t=0 to t=6 sec of the journey is

A
1:4:9
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B
1:2:4
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C
1:3:5
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D
1:2:3
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Solution

The correct option is C 1:3:5
Distance in first two seconds=12g(2)2=20
Distance in first four seconds=12g(4)2=80
Distance in first six seconds=12g(6)2=180
Ratio=20:(8020):(18080)=20:60:100=1:3:5

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