http://www.bluebomber.com/japan/
background source: http://www.bluebomber.com/japan/

| Introduction | Potential Energy | Direction of Initial Force | Direction of Impact | Pin Action | Sources |

Sources
  1. "Straight Bowling and Hook Bowling"
    http://ourworld.compuserve.com/homepages/kennmelvin/tHook.htm

  2. "Why throw a Hook Ball?"
    http://hobby.rin.ru/eng/articles/html/224.html

  3. "The Physics of... Bowling"
    http://mrfizzix.com/bowling/

  4. "eteamz: Bowling Tips & Drills"
    http://mrfizzix.com/bowling/

  5. George Allen, Dick Ritger. The Complete Guide to Bowling Strikes. TEMPE PUBLISHERS, INC. 1981.

  6. Serway, Jewett. Physics for Scientists and Engineers 6th Edition. Brooks/Cole - Thomson Learning. 2004.