[填空题]
A grinding wheel is a uniform cylinder j9r nky wyl3 0fy2f/1 +wlhsw)with a radius of 8.50 cmcxhcu(4n0hv3mzp * /s /:x qro and a mass of 0.580 kg.sr p/uc:znxx0*hq3/oc( 4mv h Calculate (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
