Consider a golf club hitting a golf ball. To a good approximation, we can model this as a collision between the rapidly moving head of the golf club and the stationary golf ball, ignoring the shaft of the club and the golfer.
A golf ball has a mass of 46 g. Suppose a 200 g club head is moving at a speed of 40 m/s just before striking the golf ball. After the collision, the golf ball’s speed is 60 m/s.
82. By approximately how much does the club head slow down as a result of hitting the ball?
A. 4 m/s
B. 6 m/s
C. 14 m/s
D. 26 m/s
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