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Physics in Swimming



Physics plays a huge role in swimming. The swimmer's stroke and efficiency has a lot to do with physics.There are three main types of drag that act on a swimmer: friction, wave, and pressure drag. Frictional drag is the result of the interaction between the swimmer’s body and the water molecules and serves to slow down the swimmer. Newton's Third Law is apart of swimming because this drag also propels the swimmer through the water. Force is also apart of physics that is involved in swimming. The mose important forces that is taken into consideration are the lift forces. These are defined as forces in a plane perpendicular to the direction of the water flow.

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Great!  This also helps explain why swimmers wear caps or shave before big meets... trying to reduce the friction on their bodies for a greater forward net force!

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