[填空题]
Suppose David puts a 0.50-kg rocs94xtc94ud cfk(9 w:ehd u-rl k into a sling of leng or(l)ybp2 6ye(siv la ;l1ns,th 1.5 m and begins whirling the rock in a nearly horizontal circle above his head, accelerating it from rest to a rate of 120 rvp bl) 6e nssla1l(o(iy2yr ,;pm after 5.0 s. What is the torque required to achieve this feat, and where does the torque come from? $m \cdot N$
Post time 2025-2-18 20:00:22
