Ship A is located 4.2 km north and 2.6 km east of ship B. Ship A has a velocity of 22 km/h toward the south and ship B has a velocity of 38 km/h in a direction 38° north of east. What are the
(a)x-component and
(b)y-component of the velocity (both in km/h) of A relative to B? (Axis directions are determined by the unit vectors and , where is toward the east.)
(c) At what time (in h) is the separation between the ships least?
(d) What is that least separation, in km?