Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10m/s west, while horse b is traveling with a velocity of 13m/s west. which horse had greater acceleration? a. horse a because its change in velocity was greater than horse b in the same time. b. horse b because its change in velocity was greater than horse a in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.