[填空题]
A grinding wheel is a uniform cy6a, zk4d 6ocxglinder with a radius of 8.50 cm and a mass g)c+9 kjn; / 4bqvtssxlq-9drof 0.580 k;kgv x4lr /d q+-qsnsb9)9 tjcg. 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
