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Question

A body is released from a great height falls freely towards the earth. Another body is released from the same height exactly a second later. Then, the separation between the two bodies, 2 sec after the release of the second body is nearly:


A
15 m
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B
20 m
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C
25 m
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D
30 m
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Solution

The correct option is C 25 m
S=ut+12gt2S=5t2S1=(t=3s)=5×32=45S2=(t=2s)=5×22=20S1S2=4520=25 m

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