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## Juanae Garnett

on 5 June 2014

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#### Transcript of The Physics Of Cheerleading

Created by: Juanae Garnett
A2
5/21/14

Momentum
Momentum occurs when a cheerleader is tumbling. When a cheerleader does a standing back tuck,she jumps and tucks her knees in, to decrease the distance between her body and the axis of the spin. Her momentum will be constant because no external torque occurs.
Force
Force= Mass x Acceleration

There is a great amount of force when a cheerleader is falling down from a stunt. The force of the cheerleader increases by gravity making the cheerleader slightly heavier.
cheer music is usually very loud and fast to go with the moves the cheerleaders are doing
pom poms and megaphones were invented in the 1930s
when cheer first started, only men cheered
Johnny Campbell (male) was the very first Cheerleader

History
Cheer leading goes way back to the very first Football game in 1869! Students from their schools started chanting for their teams. Years later it became a tradition to chant for your team. The school finally introduced the students to “Yell Leaders”. For half a century, boys cheered on their teams. it was not until the early 1900s that girls were introduced to cheer leading. Ever since then, girls have taken over the sport of cheering.
Newton's Laws Of Motion
An object in motion, stays in motion unless acted upon by and outside force:
when a cheerleader does a toe touch, hers/his body is acted on by the unbalanced force and they are forced back down to the ground by gravity.
Velocity and Acceleration
Velocity= Distance / Time

newton's 1st Law
Newton's 2nd Law
Force= Mass x Acceleration:
When the bases throw a girl in the air, they use a certain amount of force. If they throw a girl with a smaller mass there will be more acceleration.
Newton's 3rd Law
For every action, there is an equal/opposite reaction:
When cheerleaders stunt, the bases feel pressure on their arms/hands as they throw her upward, because as they exert an upward force on her, she exerts a downward force on them equal in magnitude. The harder they throw her, the more the force they feel on themselves