Six children A, B, C, D, E, F are standing at corners of a regular hexagon of each side d and are running with speed v to catch each other such that A is to catch B, B is to catch C and so on.
(i) Displacement of each to catch each other–
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Ans.
(i)
Sol. 
since all children meet at centre of hexagon, thus disp of each children = d
(ii)
Sol. t = 
= 
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