Consider the following situations: i. A ball moving at speed v is brought to rest ii. The same ball starts at rest and is projected to speed v iii. The same ball is moving at speed v and is brought to rest, then projected in the opposite direction with speed v. In which case(s) does the ball undergo the largest change in momentum a. Case i b. Case ii c. Case iii d. All the same e. Case i and ii

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.