[填空题]
(a) What is the angular momentum of a 2.8-kg uniform cylindrlp 7-l4vayijjag3o5 , /jrk q8ical grinding u7etcl;l*r z .wheel of radius 18 cm when rotating at 1500 rp;uler7. ztl* cm? $kg \cdot m^2$ (b) How much torque is required to stop it in 6.0 s? $m \cdot N$
Post time 2025-2-18 20:00:22
