The Jewnited States
Superstar
Physics of a Baseball Pitch - Baseball Pitch Speed Record - Popular Mechanics
some highlights:
Another cause of the 100-mph ceiling owes to this: the amount of torque needed to throw in excess of the century mark is greater than the amount of force the ulnar collateral ligament (the elbow ligament Strasburg tore) can withstand before giving out, according to tests Fleisig has done on cadavers. When a pitcher cocks his arm, where it is turned back to the point where the palm is facing toward the sky, there's about 100 Newton-meters of torque on the arm, which subjects the arm to the same amount of stress as if the pitcher had a 60-pound weight hanging from his hand in that position, Fleisig says.
From that cocked position, the arm snaps forward to its release point in 0.03 seconds, and at its peak speed, an elite pitcher's arm rotates at upward of 8500 degrees per second. If that single instant of speed could be maintained, then a pitcher's arm would spin around 24 times in a second.
"Shoulder rotation in baseball pitching is the fastest motion of any joint in any athlete," Fleisig says; moving faster than hip joints in sprinters or shoulders in elite tennis players.
some highlights:
Another cause of the 100-mph ceiling owes to this: the amount of torque needed to throw in excess of the century mark is greater than the amount of force the ulnar collateral ligament (the elbow ligament Strasburg tore) can withstand before giving out, according to tests Fleisig has done on cadavers. When a pitcher cocks his arm, where it is turned back to the point where the palm is facing toward the sky, there's about 100 Newton-meters of torque on the arm, which subjects the arm to the same amount of stress as if the pitcher had a 60-pound weight hanging from his hand in that position, Fleisig says.
From that cocked position, the arm snaps forward to its release point in 0.03 seconds, and at its peak speed, an elite pitcher's arm rotates at upward of 8500 degrees per second. If that single instant of speed could be maintained, then a pitcher's arm would spin around 24 times in a second.
"Shoulder rotation in baseball pitching is the fastest motion of any joint in any athlete," Fleisig says; moving faster than hip joints in sprinters or shoulders in elite tennis players.
why did you enter the thread them cocksucker? did you think i was talking about a 105 mph football?
