[填空题]
A grinding wheel is a uniform cylindez2 a0v.r7 fg bld6uz7qr with a radjrc) b 5the(0kf1/dev ius of 8.50 cm and a mass of 0.580 kg.v b5der(/ 1kf)hcet0j 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
