By Michelle Cooper Physics 30 January 22, 2016 Ms. Warnock

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Presentation transcript:

By Michelle Cooper Physics 30 January 22, 2016 Ms. Warnock The Physics of Everyday Life: Sailing “How can a sailboat sail into the wind?” By Michelle Cooper Physics 30 January 22, 2016 Ms. Warnock

A sail boat is a vessel that uses wind power to move across bodies of water.

Aerodynamics 101 Bernoulli's principle: states that for an inviscid flow of a non-conducting fluid, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.

The Principals of Sailing Upwind The Bernoulli's Principal And The effect of the Keel

Sailing Directly Upwind (Bernoulli’s Principal)

Sailing Directly Upwind (Bernoulli’s Principal + Keel)

Formulas vi =Initial Velocity vf = Final Velocity v = Change of Velocity Acceleration of the air is aa = v/t Fa = Force that sails exert on the air F = ma Newton's second law Fw = Force that the wind exerts on the sails Fk = Force on the keel Fd = Drag force Fw = -{Fk + Fd} Formulas

“How can a sailboat sail into the wind?” sailing into the wind is possible when the sail is at an angle of at least 45 degrees to the oncoming wind causing the wind to change direction. The boat will move forward because the keel, of the boat acts to the water as the sail acts to the wind. The force on the sail is opposed by the force on the keel.

Thank You freaking

http://physicsbuzz. physicscentral http://physicsbuzz.physicscentral.com/2015/05/the-physics-of-sailing-how-does.html http://www.maztravel.com/articles/sailing.html http://www.physicsforarchitects.com/Sailing_against_the_wind.php http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/josh_palmer/basic.html http://www.real-world-physics-problems.com/physics-of-sailing.html http://www.sailingteam.tuc.gr/TUC_Sailing_Team/INTERESTING/Entries/2010/12/18_Physics_of_Sailing_files/PTO000038.pdf Bibliography