[填空题]
(a) What is the angular momentum of a 2.8-kg *d:piv2 gts9dh);5fk5sg gsi v( rh/euniform cy+ sii +6h s56dnrd.iynlindrical grinding wheel of radius 18 cm when rot+d6 snyhi5 iis6.n+drating 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
