A Hoop Rotates About an Axis Through Its Center with an Angular

question 66

Multiple Choice

A hoop rotates about an axis through its center with an angular velocity of 40.0 rad/s.If the rotational kinetic energy of the hoop is 400 J,its angular momentum is

• A)800 kg · m²/s
• B)400 kg · m²/s
• C)200 kg · m²/s
• D)20 kg · m²/s
• E)5 kg · m²/s

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