[填空题]
(a) What is the angular momentum of a 2.8-kglkoee*3y 8ui zins 70+ unifo zrg+mrp g ji/.04+riurm cylindrical grinding wheel of radius 18 cm when rotating at 1500 rpm piz4.0gi rujr g/++rm? $kg \cdot m^2$ (b) How much torque is required to stop it in 6.0 s? $m \cdot N$
Post time 2025-2-18 20:00:22
