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college physics

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A diver begins a high dive with an angular velocity of 6.3 rad/s. By tucking himself into a ball, he decreases his moment of inertia by a factor of 9.0. What is his new angular speed?

  • college physics -

    angular momentum is conserved:
    angmom= I w If I goes down to 1/5, w increases by 5.

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