Solutions to Homework Set #10 Phys2414 – Fall 2005
5. GRR1 8.P.044. A grinding wheel, with a mass of 24.8 kg and a radius of 23.3 cm, is a uniform cylindrical disk. (a) Find the rotational inertia of the wheel about its central axis. The rotational inertia of a cylindrical disk is given by I = 1 2 MR2 I = 1 2 24.8 kg( 0.233 m)2 I = 0.673 kg ·m2