A stone falls freely such that the distance covered by it in the last – InterviewSolution

InterviewSolution

1.	A stone falls freely such that the distance covered by it in the last second of its motion is equal to the distance covered by it in the first 5 seconds. It remained in air for :-A. 12sB. 13sC. 25sD. 26s
Answer» Correct Answer - B Let total time of fall =n,u=0 `S_("last")=S_(5)` `(g)/(2)(2n-1)=(1)/(2)g(5)^(2)` `2n-1=25 rArr t=13 sec`

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