[填空题]
(a) What is the angu4mjycn69 yu5e ljd6 u/yc :ns,aar momentum of a 2.8-kg uniform cylindrical grinding wheel of radius 18 cm whc sy6,n/ j:uaden rotating at 1500 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
