[填空题]
A grinding wheel is a uniform cylinder with a radius of 8.bmjdr -(vri aml.1n o+noozrg 46. b(o*0*czo50 cm and a mass of ,tj2s kd rkxvm21*/pafnt 5f( 0.580 kg. Cads* fk2rv/n2(1,ttxmj p5a f klculate (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
