[填空题]
A grinding wheel is a uniform cylinder .cx 5*ratv:z ;lb.cngj +, krdwith a radius of 8.50 cm and a mass k o rhssokye(+2914ddaxc8,x of 0.5+s2h (x s cr,8kxyk149odaedo80 kg. 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
