PROBLEM 9.128 A thin triangular plate of massmis welded along its base ABto a block as shown. Knowing that the plate forms an angle θwith the yaxis, determine by direct integration the mass moment of inertia of the plate with respect to (a) the xaxis, (b) the yaxis, (c) the zaxis. SOLUTION For line BC2hxhaζ=−+()2haxa=−Also 12mVtahρρ==12tahρ=(a) Have 221122xdIdmdm′′=+213dm′=where dmt dx
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