[填空题]
Calculate the moment of inertia of theq +5z ihvf/y4z+qa km*i601t3e0lfvo tsb: b(iii,yj array of point objects shown in Fig. 8–43 lveb(i,boyi i6 f:sji00 1t3t 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?