[填空题]
On an ice rink, two skaters of equal mass grab has+6h,iptm9elhb:z/ twfzk* z2tl:k: nds and spin in j*dtf; /j1z32 n;l /ntzqk tdma mutual circle once every 2.5 s. If we ;nn kjd d *t/fmztlj123t/; qzassume their arms are each 0.80 m long and their individual masses are 60.0 kg, how hard are they pulling on one another? $\times 10^2$
