[填空题]
Calculate the moment of inertia lc 6;nax9i4julbx)c) bctkh p4ir01/of the array of po,8g)0dsf0;uczb4 g nu9hk efj int objects shown in Fig. 8–43 ab8zu 9; 4u0g hbndgf0 j)c,efksout (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?