[填空题]
Calculate the moment of inertia of the array of point objects shown ic+n;69le wlo 2 - n.gsczl*ifin Fvy(nv:,rg) uar *ljr8ig. 8–43 abr uv *)r, lrgv8jna:y(out (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?