Which of the following accurately contrasts velocity and speed? * A. speed is distance traveled in a certain amount of time. Velocity is time traveled in a certain distance
B. speed is distance traveled in a certain time. Velocity is speed in a specific direction
C. Velocity is distance traveled in a certain time. Speed is velocity in a certain direction
D. velocity is distance traveled in a certain time. Speed is how fast you're going

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.