The Rotational Kinetic Energy of Which of the Following Objects $\omega$

Multiple Choice

The rotational kinetic energy of which of the following objects is greatest? Each has mass M and radius R and rotates with angular velocity $\omega$

A) all have the same rotational KE
B) a solid sphere
C) a solid cylinder
D) a thin-walled spherical shell
E) a thin-walled cylindrical shell