[填空题]
(a) What is the angular momentum of a 2.8-kg unid qjls g4 qkp1y*2v6z//g :aiaform cylindric,yq6j e bfqri2h57 .idal grinding wheel of radius 18 cm when rotating at 1500 rpm? fbiqqr,h 76 j.2dy e5i $kg \cdot m^2$ (b) How much torque is required to stop it in 6.0 s? $m \cdot N$
Post time 2025-2-18 20:00:22
