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in figure skating, a triple Axel is a jump in which the figure skater leaps into

ID: 1792279 • Letter: I

Question

in figure skating, a triple Axel is a jump in which the figure skater leaps into the air while facing forward. performs 3.5 revolutions, and then lands facing backwards. During the spin, the skater hugs his/her arms close to the body. Choose the answer that best explains WHY the figure skater does this. Think about the experiment you performed on the rotating stool. Select one: o a. Due to conservation of energy. pulling the arms close to the chest increases the figure skaters potential energy and thermal energy, allowing him/her to jump higher (which gives the figure skater more time to perform the triple Axel) and retain more body heat for future maneuvers. O b. Due to the conservation of stable forces, the figure skater's arms naturally get pulled inward. It is impossible for the figure skater to force his/her arms outward. O c. Due to conservation of angular momentum, decreasing the effective radius of the figure skater by pulling in the arms increases the angular velocity of the figure skater.This allows the figure skater to spin faster in the air to fully complete the triple Axel. d. Due to the conservation of frictional forces, figure skaters pull their arms into their chests to decrease the effects of friction. Decreasing the effects of friction during the spin helps the figure skater spin faster to fully complete the triple Axel. Check

Explanation / Answer

Due to conservation of angular momentum, decreasing the effective radius of the figure skater by pulling in the arms increases the angular velocity of the figure skater. This allows the figure skater to spin faster in the air to fully complete the triple Axel.So the correct answer is Option C.

Explanation

Because the skater hugs his/her arms close to the body its angular velocity increases with decreasing the moment of inertia. Conserving the angular momentum.

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