If we define the kinetic energy of the club head before
Chapter , Problem 20P(choose chapter or problem)
Problem 20P
If we define the kinetic energy of the club head before the collision as “what you paid” and the kinetic energy of the ball immediately after as “what you get,” what is the efficiency of this energy transfer?
A. 0.54
B. 0.46
C. 0.37
D.0.27
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