# The Physics of the 100 meter dash - PowerPoint PPT Presentation

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By: Tilar Law, William Duff, Zoe Howell. The Physics of the 100 meter dash. The Mechanics of Sprints. Body Position Arms Legs Head Inertia Speed and Acceleration. The 100M In Action. Body Mechanics. Head

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The Physics of the 100 meter dash

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#### Presentation Transcript

By: Tilar Law, William Duff, Zoe Howell

## The Physics of the 100 meter dash

### The Mechanics of Sprints

• Body Position

• Arms

• Legs

• Inertia

• Speed and Acceleration

### Body Mechanics

• The head should stay level with the jaw at a forward constant position during the duration of the race.

### Body Mechanics

• Arms

• While running keep your arms at a 90 degree angle to your elbow and let them naturally flow. Your arms swing as a counter to the forward movement produced by your legs while running.

• Creating this movement is due the flexibility of the runners shoulder gridle

### Body Mechanics

• Legs

• Legs trust downward and back at 50-55 degrees

• Legs should be in flexion to reduce the inertia and make forward movement easier

• The lifted leg should never reach a horizontal position while running

### Inertia

• At the starting point of the race, Inertia is working against the runner.

• In order to speed up the runner must make short and quick strides to gain speed.

• As the runner speeds up, their strides become longer to cover a farther distance.

### Citations

• http://www.davis.k12.ut.us/schools/lhs/athletics/track/msprinting.html

• http://physicstt.tripod.com/id11.html

• http://www.faqs.org/sports-science/Pl-Sa/Running-Sprinting.html