At a certain instant ship Q is at a distance of 4a due east of ship P. Q is moving northwards with constant speed u and P is travelling with constant speed 2u. Find the direction of P if it is to intercept Q.Find the time T, in terms of a and u, it would take P to intercept Q.If, instead, after time has elapsed, the speed of P drops to constant speed u, without changing direction, find, in terms of a the shortest distance between P and Q the distance each ship has moved from its original position to its position when they are closest together.distance in j direction should be equal

2usina*t=ut

a=30 degrees.

distance in x direction =4a

2ucosa*T=4a

T=4a/u√3 after T/2 it has moved 2ucos30(T/2) =2a east bit it has also moved up north. normally when i find the shortest distance between the ships they are horizontal with each other but here both ships have moved up different distances north so I can not.