[填空题]
Calculate the moment of inertia of the array of point objects shown in Fig.ls7sr 5v(xrf/l1rg zm .0 .hou 8vrvxa2:77 f wv–43 abovawv7v2r :xf7 ut (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?
Post time 2025-2-18 20:00:22
