Question

1 point possible)

A uniform disc of radius R and mass m1 is rotating with an angular speed ωi about an axis passing through its center and perpendicular to the disc's plane. A small box of mass m2, initially at the center of the disc, moves away from the center and stops moving relative to the disc when it is at a distance 12R from the disc's center.

What is the angular speed of the disc--block system at the instant when the block stops moving relative to the disc?

Symbol m1 m2 R ωi
You could enter m1 m2 R omega_i
ωf=