Two ships, A and B, leave port at the same time. Ship A travels northwest at 21 knots and ship B travels at 30 knots in a direction 40° west of south. (1 knot = 1 nautical mile per hour)
(a) What is the magnitude the velocity of ship A relative to B?
(b) What is the direction of the velocity of ship A relative to B?
(c) After what time will the ships be 155 nautical miles apart?
(d) What will be the bearing of B (the direction of B's position) relative to A at that time?