Use the worked example above to help you solve this problem. A golf ball with mass 4.60 x 10'2 kg is struck with a club as shown in the figure above. The force on the ball varies from zero when contact is made up to some maximum value (when the ball is maximally deformed) and then back to zero when the ball leaves the club, as in the graph of force vs. time in the figure below. Assume that the ball leaves the club face with a velocity of +49 m/s. F F r. rf (a) Find the magnitude of the impulse due to the collision. kg-msx (b) Estimate the duration of the collision and the average force acting on the ball. (Assume the distance the ball travels on the face of the club is 2 cm, roughly the same as the radius of the ball.) duration 0.000816 J 5 average force 2762 g: N ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo EXERCISE HINTS: GETTINGSTARTED | I'M STUCK! A 0.188 kg baseball, thrown with a speed of 38.8 m/s, is hit straight back at the pitcher with a speed of 49.8 m/s. (a) What is the magnitude of the impulse delivered by the bat to the baseball? -x Net impulse is the change in momentum. Since all other forces are negligible compared to the force of the bat, the impulse delivered by the bat is the net impulse. Use momentum ideas to find it. kg - m/s (b) Find the magnitude of the average force exerted by the bat on the ball if the two are in contact for 2.06 x 10'3 s. 8085.8252 X Follow the example. What ouantities determine the averaoe force? kN