[填空题]
(a) What is the angular momp3e*g6gz xvgalz )pz6*iug-( ent,uq tgkx7p9 r8um of a 2.8-kg uniform cylindrical grinding wheel of radius7,gk8r9tqp xu 18 cm when rotating 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
