[填空题]
A grinding wheel is a uniform cylinder wgd,sy(f.5a d u x0d/jks;et kwagb83/ith a radius of 8.50 cm andi)b,q(e cib.+tt ..m- ri vmga a mass of 0.580 k) iq tcvb,.amim.r .+ t(bg-eig. 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
