[填空题]
Calculate the moment of inw6km 8,ov*g ::ymmmwbertia of gabu-xqg xaa/q519e43wa x/c the array of point objects shown in Fig. 8–43/1aagcxw5eb-3q9ax /4 uaq xg 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?