[填空题]
Calculate the moment of inertia of the array of pomg-zu6h/o:n q m6 ju0bint objects sho8 s a3q+vvalltz)5jh7-scg 8u wn in Fig. 8–43 a) 8lssh g -uaza8tv3q7l5+cvjbout
(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?