At the 1996 Olympic Games, Carl Lewis won his 4th straight long jump gold medal with a jump of 8.50 meters. If the angle of his jump was 23 degrees, and assuming projectile motion, what was the magnitude of his total take off velocity?
Note: When jumping, the body moves from an upright position to a nearly flat one at landing, making it able to get the center of mass farther. Neglect this motion of the body in the problem.