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If a freely falling body covers half of its total distance in the last second of its journey, Find its time of fall. |
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Answer» SOLUTION :Suppose t is the time of free fall. `H=(1)/(2)G t^(2)…….(1)` `(h)/(2)=(1)/(2)g(t-1)^(2)..........(2)` Solving 1, 2 `t=(2+sqrt(2))s` SINCE `2-sqrt(2)` is not ACCEPTABLE. |
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