Two persons A and B are located in X-Y plane at the points(0, 0) and (0, 10), respectively. (The distances are measuredin MKS units). At a time t-0, they start movingsimultaneously with velocitiesüA - 2j ms 1 andüB 2i ms-1,respectively. The time after which A and B are at theirclosest distance is(a) 2.5 s[EAMCET 2009](b) 4s10V2Sc) Is(d) s

Two persons A and B are located in X-Y plane at the points(0, 0) and (

1.	Two persons A and B are located in X-Y plane at the points(0, 0) and (0, 10), respectively. (The distances are measuredin MKS units). At a time t-0, they start movingsimultaneously with velocitiesüA - 2j ms 1 andüB 2i ms-1,respectively. The time after which A and B are at theirclosest distance is(a) 2.5 s[EAMCET 2009](b) 4s10V2Sc) Is(d) s
Answer» 1. draw the network for the project whose activities with their relationship are given below:. activities A,D,E can start simultaneously ;B,C>A;G,F>D,C;H>E,F.