[填空题]
A grinding wheel is a uniform cylx)1jz ,fzei.-klaf5q inder with a radius of 8.50 cm and a mas fck. bk;ndc9n y1hd2/s of 0.580 k hk;cyc1/ddn. b2fn9kg. 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
