THE PHYSICS BEHIND JAVELIN THROW!
Siužetinės Linijos Tekstas
- Center of Gravity and PressureThe two important factors involving the physics of throwing a javelin are center of gravity and center of pressure. The center of gravity is near the grip and does not change during throw. "Throwing through the tip," a term of how to throw a javelin, means throwing through the grip or center of gravity. The center of pressure is the aerodynamic force of drag and lift on the javelin.
- Attack AngleThrowing at optimal attack angle is throwing javelin at angle at which air flows efficiently around the javelin. To produce maximum distance, javelin must be thrown at attack angle to minimize drag and maximize speed. The attack angle for throwing in head wind is down causing less lift than in tail wind.
- ThrowingAngleWind speed and direction change the optimal angle of release significantly. Also, the strength and speed at which the thrower can produce, changes the direction at which the javelin should be thrown. The most common method is releasing the javelin atabout a 40-degree angle, causing more lift and flight to the javelin.
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