[填空题]
Calculate the moment of inertia of the8 )tyr*b(3ex wia +fxv array of pp mdh4;i i tb0padgy),5bo;t)oint objects shown in Fig. 8–43p0;)tadd5gitb,b);i mh 4o py about (a) the vertical axis, $kg \cdot m^2$ (b) the horizontal axis. Assume m=1.8 kg,M=3.1kg and the objects are wired together by very light, rigid pieces of wire. The array is rectangular and is split through the middle by the horizontal axis. $kg \cdot m^2$ (c) About which axis would it be harder to accelerate this array?