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# The physic of yoyo

Physic project
by

## Michael Sutopo

on 20 November 2012

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#### Transcript of The physic of yoyo

Behind the Yo-Yos By Michael Sutopo
Period 5 Motion Of Inertia Work cited Terms you should know before we start Kinetic energy Potential Energy History of Yo-Yo The Gravity of the earth Moment Of
Inertia How the Impulse of the Yo-yo
Work. Centripertal force
and how it effected tricks on yo-yo http://static.ddmcdn.com/gif/easy-yo-yo-tricks-7.jpg Around the World 9.78 M/Seconds The energy of an object that is possesed due to motion or movement Is an energy that comes from an object or system that comes from position or body arangements I = moment of inertia (lbm ft2, kg m2)m = mass (lbm, kg)r = distance between axis and rotation mass (ft, m) I=M(R)^2 The History Of Yo-Yo The earliest surviving yo-yo dates to 500 BCE and was made using terra cotta skin disks/sides. A Greek vase painting from this period shows a boy playing yo-yo Greek records from the period describe toys made out of wood, metal, or painted terra cotta (fired clay). The terra cotta disks were used to ceremonially offer the toys of youth to certain gods when a child came of age—discs of other materials were used for actual play. http://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Yo-yo_player_Antikensammlung_Berlin_F2549.jpg/605px-Yo-yo_player_Antikensammlung_Berlin_F2549.jpg http://www.ideafinder.com/images/inventions/yoyo.jpg Impulse = FaverageΔt = mΔv F=Force

T=Times

M=Mass http://hyperphysics.phy-astr.gsu.edu/hbase/impcal.html http://hyperphysics.phy-astr.gsu.edu/hbase/imgmec/avel.gif Angular Velocity Angular acceleration W=Point of interest T=The number of torque W=Point of intrest R=Radius V=Vector space http://wikipremed.com/image_science_archive_68/010105_68/110350_11602_68.jpg http://upload.wikimedia.org/math/5/e/5/5e581cd5f6c9a2cdaa1ba11b2ff7150d.png T=Time of the rotation
W=Angular Velocity
R=Radius of the circle Thank You for listening!!!!! :D
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