A) 29 s
B) 21 s
C) 37 s
D) 31 s
Correct Answer: A
Solution :
[a] since the last five steps covering 5 m land the drunkard fell into the pit, the displacement prior to this is (11-5) m=6m. time taken for first eight steps (displacement in first eight steps=5-3=2 m)=8 s. then time taken to cover first 6 m of journey \[=\frac{6}{2}\times 8=24s\] Time taken to cover last 5 m =5 s Total time = 24+5 =29 sYou need to login to perform this action.
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