When a figure skater makes a jump, he increases his rotation

Last updated: 7/31/2022

When a figure skater makes a jump, he increases his rotation speed by pulling together his arms and legs. This reduces his rotational inertia causing him to spin faster. If the initial spin rate of a figure skater is 1 RPM and he decreases his rotational inertia by half during the spin, what is his final spin rate? 1 RPM 2 RPM 4 RPM 0.5 RPM