A playground ride consists of a disk of mass M = 33 kg and radius R = 1.6 m mounted on a low-friction axle (see figure below). A child of mass m = 20 kg runs at speed u = 2.6 m/s on a line tangential to the disk and jumps onto the outer edge of the disk. m Part 1 (a) If the disk was initially at rest, now how fast is it rotating? (Enter your answer to at least three decimal places.) rad/s

A playground ride consists of a disk of mass M = 33 kg and radius R = 1.6 m mounted on a low-friction axle (see figure below). A child of mass m = 20 kg runs at speed u = 2.6 m/s on a line tangential to the disk and jumps onto the outer edge of the disk. m Part 1 (a) If the disk was initially at rest, now how fast is it rotating? (Enter your answer to at least three decimal places.) rad/s