[填空题]
Calculate the moment of inertia of tha .w)oyqnpl9tjkg1 cz6;i ;(y +va+e ls:v 21y-f /d8we f2g q)vyzjyne array of point objects shown in Fig. 8–43 1vzywnd eyv:/ gqs af82f++j v-)y2elabout (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?