[填空题]
A grinding wheel is a uniform cylinder with a radiwi /u9gi85ur ormpp05 us of 8.50 cm and a mass of 0.5wpir 5i0urg/o pu89mpoy;wtem1m(1mx0hx c 5htv +: 580 kg.5mv0 t(hx1p 1c+h:xtm ywo m;e 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
