Which indicates what happens to the kinetic energy of an object when its speed increases? A)The kinetic energy does not change.

B)The kinetic energy increases by the same factor as the speed increase.

C)The kinetic energy increases by the square of the same factor as the speed increase.

D)The kinetic energy decreases by the same factor as the speed increase.

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.