Airplanes A and B are flying at the same altitude and are tracking the eye of hurricane C. The relative velocity of C with respect to A is vC/A = 470 km/h A 75°, and the relative velocity of C with respect to B is vC/B = 520 km/h A 40°. Determine
(a) The relative velocity of B with respect to A,
(b) The velocity of A if ground-based radar indicates that the hurricane is moving at a speed of 48 km/h due north,
(c) The change in position of C with respect to B during a 15-mininterval.