The figure below shows a hollow cylinder that has a length equal to 1.80 m, a mass M equal to 0.88 kg, and radius equal to 0.20 m. The cylinder is free to rotate about a vertical axis that passes through its center and is perpendicular to the cylinder. Two objects are inside the cylinder. Each object has a mass m equal to 0.18 kg and is attached to a spring that has a force constant k and an unstressed length equal to 0.40 m. The inside walls of the cylinder are frictionless.