how does an acrobat employ the conservation of angular momentum in her performance? ???

Question

anonymous · Answer

Conservation of angular momentum is a conserved quantity for every point of the acrobat. For example, if the acrobat start spinning with his arm stretched, and then make them stick to his body, his speed will increase : that is because the angular momentum of the acrobat  is conserved, and the distance of his hands from the center of rotation is reduced. (The angular momentum depends on rotationnal speed and distance to the center. If the momentum is conserved, and the distance is reduced, then the speed must go up.)

aravindg · Answer

thanx

aravindg · Answer

nice explanation

jamesj · Answer

This is demonstrated in this MIT lecture at 17:35 http://ocw.mit.edu/courses/physics/8-01-physics-i-classical-mechanics-fall-1999/video-lectures/lecture-20/ You'll have a much easier time with all these questions after you watch these lectures, as we've discussed.

aravindg · Answer

ya isaw it james it was a fabulous expirement