[填空题]
A grinding wheel is a uniform cyl7 aco,mg1rr2m(f3jqcj*t p n6 in+af 0pm ..pxp47 gax avf.88p-n hcwnoder with a radius of 8.50 cm and a mass of 0.580 kg. C.o+ mcnfp 0 afa4 8a p-w.g8p.p7vhnxxalculate (a) its moment of inertia about its center, $\approx$ $kg \cdot m^2$ (b) the applied torque needed to accelerate it from rest to 1500 rpm in 5.00 s if it is known to slow down from 1500 rpm to rest in 55.0 s。 $m \cdot N$
Post time 2025-2-18 20:00:22
