A rigid body is in pure rotation, that is, undergoing fixed axis rotation. Then which of the following statement(s) are true?

Options

A. you can find two points in the body in a plane perpendicular to the axis of rotation having same velocity.
B. you can find two points in the body in a plane perpendicular to the axis of rotation having same acceleration
C. speed of all the particles lying on the curved of a cylinder whose axis coincides with the axis of rotation is same.
D. angular speed of the body is same as seen from any point in the body.

Answer

C, D