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23 Nov 2019
An ice skater is spinning on frictionless ice with her armsextended outward. She then pulls her arms in toward her body,reducing her moment of inertia. Her angular momentum is conserved,so as she reduces her moment of inertia, her angular velocityincreases and she spins faster. Compared to her initial rotationalkinetic energy, her final rotational kinetic energy is_________
a.) larger, because her angular speed is larger.
b.)the same.
c.)smaller, because her moment of inertial is smaller.
An ice skater is spinning on frictionless ice with her armsextended outward. She then pulls her arms in toward her body,reducing her moment of inertia. Her angular momentum is conserved,so as she reduces her moment of inertia, her angular velocityincreases and she spins faster. Compared to her initial rotationalkinetic energy, her final rotational kinetic energy is_________
a.) larger, because her angular speed is larger.
b.)the same.
c.)smaller, because her moment of inertial is smaller.
Tod ThielLv2
15 Jun 2019
