An ice skater starts to spin with her arms outstretched. She then gently brings her arms in, and finds she spins quicker (assume no friction between skates and ice). As she is bringing in her arms, which of the following changes take place (choose all or any applicable). ☐ Her rotational kinetic energy increases. Her rotational kinetic energy decreases Her angular momentum increases Her angular momentum decreases
An ice skater starts to spin with her arms outstretched. She then gently brings her arms in, and finds she spins quicker (assume no friction between skates and ice). As she is bringing in her arms, which of the following changes take place (choose all or any applicable). ☐ Her rotational kinetic energy increases. Her rotational kinetic energy decreases Her angular momentum increases Her angular momentum decreases
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Transcribed Image Text:An ice skater starts to spin with her arms outstretched. She then gently brings her arms in,
and finds she spins quicker (assume no friction between skates and ice). As she is bringing in
her arms, which of the following changes take place (choose all or any applicable).
Her rotational kinetic energy increases
Her rotational kinetic energy decreases
Her angular momentum increases
Her angular momentum decreases
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