A uniform solid sphere of mass M and radius R rotates with an angular speed ω. What must be the angular speed of a uniform solid cylinder of mass M, radius R, and height 2R that has the same rotational kinetic energy of the sphere?
A)2ω/5
B) ω
C)4ω/5
D)2ω/
E)ω/

Question

A uniform solid sphere of mass M and radius R rotates with an angular speed ω. What must be the angular speed of a uniform solid cylinder of mass M, radius R, and height 2R that has the same rotational kinetic energy of the sphere?
A)2ω/5 
B) ω 
C)4ω/5 
D)2ω/ 
E)ω/

Quizplus · Accepted Answer

The Answer of A uniform solid sphere of mass M and radius R rotates with an angular speed ω. What must be the angular speed of a uniform solid cylinder of mass M, radius R, and height 2R that has the same rotational kinetic energy of the sphere?
A)2ω/5 
B) ω 
C)4ω/5 
D)2ω/ 
E)ω/

A Uniform Solid Sphere of Mass M and Radius R