[填空题]
Calculate the moment of inertia o7nmkg ;*zo9d+n rlnbp/k6gv - f the array of pointgc, jd.yk tvt6 9-p2u2+fp njn+ :jbtk objects shown in Fig. 8–43 abcgk ,2t+jj.-by6 +2p9k n:njvtdp utfout (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?