[填空题]
(a) What is the angul9gbn-81oxp( odf n j7war momentum of *a ,k mf 9+yj7hx,okvka 2.8-kg uniform cylindrical grinding wheel of radius 18 cm when rotating at 15009 ,kmk+kfva yo hx,*7j rpm? $kg \cdot m^2$ (b) How much torque is required to stop it in 6.0 s? $m \cdot N$
Post time 2025-2-18 20:00:22
