The Science of Cheerleading Stunts! There's always the debate on whether cheerleading is a sport or not, but this sport is actually full of hardwork, and science. stunts, jumps and tumbling involve principles of gravity

You need to find the right velocity to get your jumps & tumbling exactley right and stiff.

the forces of gravity act upon both the flyer and the bases the weight upon the flyer is evenly distributed onto each base. weight distribution is important because it helps the supporters keep the flyer in the stunt balanced. during when the flyer goes up, she stops and comes down at a rate of 9.8m/s squared. Because the force is greater on the way down, the bases and back must bend their knees to cushion her landing and absorb her. When she is thrown into the air for a stunt that involves rotation of the body, she has all the angular momentum from her push-off that she will get. momentum equals the product of mass, velocity and distance from mass to axis momentum = mass * velocity force = change in momentum/change in time Terms;

Base: the person or persons at the bottom of the stunt who holds the flyer.

Flyer:The person who goes in the air in stunting.

Back: The person on the floor that holds the flyers ankles and takes extra wait off the bases. Extension:

a stunt in which 2 bases and the back hold the flyer above their heads with their arms locked. The force of both bases have to be greater than the force of gravity plus the weight/force of the flyer. Newtons first law;

an object in motion stays in motion until an outside force acts upon it. Therefore, the flyer will stay in the air until the gravity pushs/ pulls them down. Newtons 3rd law of motion;

for every action there is an equal and opposite reaction.

So; the force applied to the flyer will be equal to the force at which the flyer is thrown. Some of our sorces:)

www.real-world-physics-problems.com

-http://www.mrzontv.com/wiki/index.php?CheerleadingPhysics

-http://www.mrzontv.com/wiki/index.php?CheerleadingPhysics Special thanks to LSHS JV Cheer:)

By: Amber Wiggins, Ashley Tatum and Jessica Gore :) 5th hour.

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# The Science of Cheerleading!

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