A Solid Sphere and a Solid Cylinder Both Have the Same

question 42

Multiple Choice

A solid sphere and a solid cylinder both have the same radius and mass.If the sphere is spun about an axis through it center with angular velocity
_sphere,what angular velocity must the cylinder have to the same rotational kinetic energy as the sphere? Round your answer to 2 significant figures.

• A) _cylinder = _sphere
• B) _cylinder = 0.80 _sphere
• C) _cylinder = 0.89 _sphere
• D) _cylinder = 0.64 _sphere

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