[单选题]
An ice skater performs a pirouette;aug6. p8 svhf (a fasxj: h7cx25vxo t spin) by pulling in his outstretched arms close to his body. What happens to his angular momen cjo x:xhvx572tum about the axis of rotation?
A. It does not change.
B. It increases.
C. It decreases.
D. It changes, but it is impossible to tell which way.
Post time 2024-1-22 02:51:16