1998 Physics of Sports. Phys 208A

Ken Young. Department of Physics

Last updated on 15 May/98


Introduction Lecture notes in .ppt. Not many Hypermail Test solutions video clips. Download to local computer and view using multimedia player. Games

eg. Basketball % success

The muscles

Introduction.

  • qualifications
  • organization
  • evaluation
  • schedule for tests.

1. Naked eye physics of sports

  • Give a feeling for the time scales and distance scales that are involved.
  • response time. propagation of signals
  • speeds attained
  • accuracy of movement
  • power and energy produced
  • Discuss scaling phenomena of above.
  • Method for finding the scientific truth
  • Cargo cult science
  • Measurment of time by counting, U got rythm.
  • Measure catch the dollar bill

2. History of Sports physics

  • Horsemanship through the ages.
  • Ancient olympics. Jumping sprinting
  • Technology innovation in boat propulsion
  • Diving
  • Martial arts

3. Kinematics

  • one dimensional motion
  • two dimensional motion
  • as viewed in different frames

4. Kinematics with Acceleration

  • Falling
  • Rising is like falling. Different viewpoints.
  • Center of mass motion. The grand Jete.
  • 5.Dynamics and Energy

  • What causes acceleration?
  • Forces and acceleration
  • Mass and acceleration
  • Action and Reaction
  • projectile motion
  • Work and energy
  • 6. Laws of Conservation

    • Production of work
    • Energy source
    • You don't get something for nothing
    • 2nd Law of Thermodynamics. Not only don't you get something for nothing, you lose a lot of it.
    • collisions and linear momentum conservation. You can get a lot more velocity on the ball.

    Advertising cons you into thinking you're the one

    You can do what's never been done

    Meanwhile life goes on all around you.

    Bob Dylan

    9. Muscle mass. How to get and and how to care and feed it.

    • Strength training
    • Neurological training
    • Agonists and antagonists
    • Training cycle
    • Endurance muscles

    10. Muscle length and athletic movement

    • Backswing and preparation
    • Rowing and cycling
    • Dead weight
    • Force and speed relation in muscles
    • Optimizing power delivered
    • Getting and spending. High speed and high power
    • Whip action applied to golf and baseball
    • Tennis racket and bat sweet spots

    7. Rotational Dynamics and Kinematics.

    Angular momentum

    How to use changing angular momentum

    • skating
    • diving
    • gymnastics
    • The cat problem.

    8. Effects of fluids and spin

    Guest lecturer, Tom Steiger for the week of 1 June/98.

    • Lift and Drag
    • The curve ball, the knuckle ball, rising fast balls.
    • Tennis
    • Golf
    • Basketball
    • Rowing and paddling
    • Sailing. Why do sailboards go so fast?
    • Flying and how we use "lift" in many sports.
    • Newton's way of thinking of this.

    Scientific investigations.

    • Data logging.
    • Video recording and analysis
    • Tools used in physics of sports.
    UW Women and Men Crew. National Collegiate Champs in 1997.
       
    Your body is usually automatically coordinated in its movements. However, it's possible to train new coordination.
    Appendices
    1. FAQ's about this class
    2. Mass and moment of inertia of body parts
    3. Balls and their characterisitics
    4. Hydrodynamic lift in the sculling stroke
    5. Lift and air resistance
    6. Measurements of Acceleration of the sculled shell
    7. Intrinsic limits to performance of biological systems
    8. Cycling
    9. Muscles, Tendons and bones.
    10. Tennis. Angles to win.
    11. Data logging for physics of sports.
    12. Tattletale lite. Primer for logging data with portable computer.
    13. The balance of racing shells.
    14. Elite ergometer performance and body weight for rowing.
    15. Martial Arts
    16. Perception of time and it's importance to athletes.
    17. Conversion of units from metric <->common units.

    Study and Exam Guides.

    • solutions to questions and problems are in the chapters.
    • solutions to examinations.

    Related Links.