Four boys are standing at the four comer...

Four boys are standing at the four comers of a square ABCD of length of sideal. They simultaneously start running such that runs towards B, B runs towards C, C runs towards D and D runs towards A each with velocity . They will meet at after time given by :

`(a)/(V)`

`(a sqrt(2))/(V)`

`(a)/(V sqrt(2))`

None of these.

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