[填空题]
A figure skater can increase her spin r/( ,lvvltyx (5q0zfzhotation rate from/ 47 1 xs/xamxfry:l,r3t csdo an initial rate of 1.0 rev 3:r7 x /mco t1dassxr,4y/lfx every 2.0 s to a final rate of 3 $rev/s$ If her initial moment of inertia was 4.6 kg*$m^2$ what is her final moment of inertia? How does she physically accomplish this change? $kg \cdot m^2$
Post time 2025-2-18 20:00:22
