A skilled ballet dancer appears to move in a seemingly floating motion, seeming

Question

A skilled ballet dancer appears to move in a seemingly floating motion, seeming to defy gravity in a grand jeté. Which of the following is part of how this is done?

(    )moving her arms and legs so that her center of mass is kept from accelerating downward

(   ) moving her arms and legs to keep her center of mass at the about same height above the ground.    

(    )moving her arms and legs to cause her center of mass to move upward while falling

(    )moving her arms and legs so that as her center of mass moves, she keeps her head at the same height above the ground

(   ) being supported from the ceiling by a hidden cable not visible to the audience

Explanation / Answer

moving her arms and legs so that her center of mass is kept from accelerating downward

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