[填空题]
A grinding wheel is a uniform cylinder with a et4nj 7isi,) kas3st e+ ghj.+radius of 8.5 a*rz ljva3/ yoix+;i)i 2b4nt0 cm and a mass of 0.580 kg. Canz* ibvo;3+jax42ai)y lr/ti lculate (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
