[填空题]
(a) What is the angular momentum of a 2.8-kg w,egcelx5x+s pk25fv m; l (j9uniform cylindri k)4+wy8lgbjwcq1bx : tv6s9t cal grinding wheel of radius 18 cm when rotating at bv)+wx91jc4tg8wkq bys :6t l 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
