[填空题]
Calculate the moment of inertia of the fiw5c(gu- e2 7t+fexv array of point objects shown in Fig. 8–43cfw2+u gvf5et(x -e7 if2a jm)86afq j/d i(yd68 d/2a(i)fyqad j fmj 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?