Conclusion
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Errors and Conclusion
My calculated velocity varies from those i have seen elsewhere by about 25 m/s. The most obvious problem would arise if the .01 sec delay was not actually a .01 sec delay. Discrepencies in capacitor values, especially considering the effect water has on capacitance (It was raining) in combination with a variable resistor that may not have been set correctly could account for this. A solution would be to calibrate the delay circuit.

Other problems I encountered with trying to see how long the ball contacts the club caused a possibly very large variation in acceleration from reality. If the ball was undergoing acceleration longer than i calculated, the force would be lower than my result of 2159 N. Final velocity innacuracies due to the aformentioned possible delay discrepencies would compound the problem as well.

All in all I learned that golf balls undergo very large acceleration forces and are darn hard to hit in the dark (see the shots of my misses!). I was not able to obtain a picture showing the golf ball squishing. My guess is that it squishes sooner than the pictures I got show. To capture an image at the moment of impact, a photogate trigger would be needed. As soon as the club broke the beam of light beside the ball, it would trigger the flash or start the delay, ridding of the inconvenient delay due to the somewhat slow speed of sound.

  Swoosh The sound of the club tearing through the grass set off the flash despite my poor aim.

If you listen closely you can hear the camera man laughing.
  Another miss...

Sheesh
  A closeup miss Large-scale embarassment.

Somebody moved the ball, I swear.