a ship A is travelling due east at a speed of 8m/s and a ship B is travelling due south at 10m/s. At an instant when A is 3km from B in a direction 060 a motor boat leaves A and travels in a straight line to B with speed 14m/s 1) show it reacges B in 500 seconds 2)if upon reaching B the motor boat immediately returns back to A in a straight line,again with speed 14,find the time taken for the return journey. i need a diagram here to get started. book im working through is no help :( im thinking: distance triangle: if C is point where motorboat meets B then have AB=3 angle ABC=X say velocity triangle: Vb=velocity of B Vm=velocity of motorboat then i have Vb pointing down, -vm at an angle up from bottom of vb and vb-vs makes other side then angle between vb and vb-vs=180-x but now not sure how to proceed so thinking my pictures are wrong or im totally missing something. i seem to need another angle or length?