Aperson starts to run around a square track with sides of 50 m starting in the bottom right corner and running counter-clockwise. running at an average speed of 5 m/s, the jogger runs for 53.80 seconds. what is the difference between the magnitude of the person's average velocity and average speed in m/s? ( provide detailed explanation)

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.