[填空题]
Calculate the momentfhdt:ta. *dyk93 h;robmbw3 e677j31 rxq kfcof inertia of the array of point objects shown in Fig. 8–43 ab63 ex7krb w1 j3mf7bqcout (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?