[填空题]
Calculate the moment of inertia o8xf zfsa5 n4 r9r*qw) aoho3w5f the array of point objectsq ) ha-8yzyri2 shown in Fig. 8–43 ar hayq i8)-zy2bout (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?