[填空题]
Calculate the moment of inertia of th+ h9 5hp8yfaoxe array of point objects sho2uwky/oe t5) limdmr+u q-3 p0wn in Fig. 8–43 abou+m2op ulqr5y/dmi0t3 -kwu )et (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?