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# The Physics of Gymnastics

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## Haylee Thomas

on 20 February 2013

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#### Transcript of The Physics of Gymnastics

By: Haylee Thomas The Physics of Gymnastics Uneven Bars Vault Sources Newton's 1st Law Beam Newton's 2nd Law This is an apparatus that has two bars (set at different heights) that a gymnast does flips , spins and release moves off of moving bar to bar. Vaulting is when a gymnast runs full speed at a table then springs off doing flips and twists in the air before landing. An object in motion will stay at motion and an object at rest will stay at rest unless an unbalanced force stops it. Beam is when a gymnast goes on balance beam and does various exercises (i.e. flips) on the beam, maintaining balance. F = m x a Vault Beam Uneven Bars When you start to run towards the vault, you will stay in motion unless an outside force stops you.
After you flip off the vault and are in the air, you will stay in motion until gravity (outside force) pulls you down. When you jump up to grab the uneven bars, you will stay in motion unless an outside force (the bars) stops you.
When you get ready to dismantle from the bars, the outside force of gravity pulls you down. When you stand on the beam, you are at rest. You will stay at rest until an outside force stops you.
When you are done with your routine and dismantle the beam you will stay in motion until gravity pulls you down. Vault Uneven Bars Beam When you go to flip on the vault, the more mass the gymnast has and the faster they run equals the force.
For example:
Mass: 150 kilograms
Acceleration: 10 m/s
Force = 1,500 N When you jump to grab the bars, the more mass the gymnast has and the more acceleration equals the force.
For example:
Mass: 170 kilograms
Acceleration: 20 m/s
Force = 3,400 N When flip mount on the beam the more mass the gymnast had and the more acceleration they had equals the force.
For example:
Mass: 125 kilograms
Acceleration: 8 m/s
Force = 1,000 N Newton's 3rd Law For every action there is an equal and opposite reaction. Vault Uneven Bars Beam When a gymnast presses on the vault the vault presses back on them with an equal force.
For example:
A gymnast pushes off the vault with a force of 20 N.
The vault pushes back on her with 20 N. When a gymnast is on the bars, she/he presses and holds onto the bars. Doing this they exert a force onto the bars and the bars push back on them.
For example:
A gymnast holds onto the bars with a force of 15 N.
The bars exert an equal force of 15 N back on her. When a gymnast presses on a beam, the beam presses back on her/him with an equal force.
For example:
A gymnast presses on the beam with a force of 7 N.
The beam pushes back on her/him with an equal fore of 7 N. Beam Uneven Bars Vault "Explaining the Uneven Bars in Gymnastics." iSport. iSport. 18 February. 2013. <http://gymnastics.isport.com/gymnastics-guides/explaining-the-uneven-bars-in-gymnastics>
"Explaining the Vaulting Event in Gymnastics." iSport. iSport. 18 February. 2013. <http://gymnastics.isport.com/gymnastics-guides/explaining-the-vaulting-event-in-gymnastics>
Caplan, Theo. "The Physics Of Gymnastics: Vaulting And Newton’s Laws Of Motion." The AfterMatter. The AfterMatter. 18 February. 2013. <http://www.theaftermatter.com/2012/05/physics-of-gymnastics-vaulting-and.html>
"Balance beam - definition of Balance beam (gymnastics)." The Free Dictionary. Farlex. 18 February. 2013. <http://www.thefreedictionary.com/Balance+beam+(gymnastics)>
Moskowitz, Clara. "The Twisted Physics of 5 Olympic Sports." Live Science. 1 August. 2012. 18 February. 2013. <http://www.livescience.com/22021-summer-olympics-sports-physics.html>
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