[填空题]
(a) What is the angular momentum of a 2zid.t f /8:was.8-kg uniform cylindrical grinding whe+(nk zgrv2.pje jeq0+ el of radius 18 cm when rotating at 1500 rpmev+0z njq+j. (rk2 peg? $kg \cdot m^2$ (b) How much torque is required to stop it in 6.0 s? $m \cdot N$
Post time 2025-2-18 20:00:22
