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The Physics of Sports. Fermilab. Tevatron, 4 miles around. Main Injector, 2 miles around. Argonne National Laboratory. Physics explains things that are very, very large. Physics explains things that are very, very small. Physics explains things that are right in front of us.

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Fermilab

Tevatron,

4 miles around

Main Injector,

2 miles around






Newton s first law
Newton’s First Law

  • Objects at rest remain at rest

  • Objects in motion remain in motion

    UNTIL YOU APPLY A FORCE


Newton s second law
Newton’s Second Law

F = ma

What forces are important in sports?




The home run swing
The Home Run Swing

  • Ball arrives on 100 downward trajectory

  • Big Mac swings up at 250

  • Ball takes off at 350

    • The optimum home run angle!

Courtesy of A. Nathan, University of Illinois. http://www.npl.uiuc.edu/~a-nathan/pob/


Newton s third law
Newton’s Third Law

For every action there is an equal and opposite reaction.


Conservation of energy
Conservation of Energy

Potential Energy

Kinetic Energy

Kinetic Energy

Compression Energy

Heat and Sound Energy


Conservation of momentum
Conservation of Momentum

If m1 = m2, then v1 = v2



Equipment features
Equipment features

  • Ball material, size, shape, and texture

  • Properties of the club, bat, racquet, or stick


http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.htmlhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Air resistance drag
Air Resistance (drag)http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


F r i c t i o n
Fhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.htmlRICTION


Resistance friction
Resistance & Frictionhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


The Power of Spinhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Spins in figure skating
Spins in Figure Skatinghttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Spins in figure skating1
Spins in Figure Skatinghttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Reaction time
Reaction Timehttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Downhill skier speed 80 mph
Downhill skier speed: 80 mphhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Reaction Time in Baseballhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

Courtesy of R. Adair through A. Nathan.


Measure your reaction time
Measure your reaction time…http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Compare your reaction time
Compare your reaction time…http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

Equation used: t = √((2d)/g)


Physical laws explain the world
Physical laws explain the worldhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

  • Newton’s Laws of Motion

  • Conservation of Energy

  • Conservation of Momentum

    These laws help us explain everything

    about sports.

    Physics really is everywhere!


Visit fermilab www fnal gov
Visit Fermilabhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.htmlwww.fnal.gov

  • Buffalo viewing

  • Bicycling

  • Walking

  • Roller blading

  • Canoeing

  • Fishing


Visit fermilab
Visit Fermilabhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

  • Lederman Science Center

  • Tours

  • Saturday morning physics

  • Ask a Scientist

On-line activities:

www-ed.fnal.gov


The physics of sports1
The Physics of Sportshttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


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