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• http://cache1.asset-cache.net/gc/85667755-basketball-harlem-globetrotters-ant-atkinson-gettyimages.jpg?v=1&c=IWSAsset&k=2&d=GkZZ8bf5zL1ZiijUmxa7QR0gXWFrFX1MntGsBYCKORc%2bKIuCoaxCErJ1faObbH1pfyShw0NAXgNUCYDUfvG64lZQ%2bSeQDVXMJY%2bG%2f0%2fxRIo%3d
•  
• http://en.wikipedia.org/wiki/James_Naismith
  
  
• https://maureenegan.files.wordpress.com/2012/01/bball.jpg
  
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• http://upload.wikimedia.org/wikipedia/commons/4/4a/Dr._James_Naismith.jpg
  
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• http://www.jokeoftheday.me/wp-content/uploads/2013/08/smiling-baby.jpg
  
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• https://www.youtube.com/watch?v=f-sq1CCbet4
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• https://answers.yahoo.com/question/index?qid=20090426184429AA1CL6V
  
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• http://www.physicsclassroom.com/mmedia/circmot/cf.cfm
  
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• http://hyperphysics.phy-astr.gsu.edu/HBASE/cf.html
  

          http://www.screanews.us/BellportBasketball/fingerspin.gif

             Knight, Randall. Physics For Scientists and Engineers. 3rd ed. Vol. 1. California: Pearson Education, 2013. 103. Print.