[填空题]
Calculate the moment of inertm(b i gkph,jy81p dpgsie./ 6xks m;+:ia of the array of point objects shown in Figzkyjrje d9 2jac.03z /. 8–43 aboy0 jar3 9zzjcdje/k.2ut (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?