[填空题]
(a) What is the angular momek8ohqdh. /h64meeyxs4y8o i8nt 5 4k)7hf iv5ramuz+ntum of a 2.8-kg uniform cylindrical grinding wheel of radius 18 cm when rotating ati5mr4+ f)tzv una5hk7 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
