- #1
engstrom2278
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Homework Statement
The moment of inertia (in4) about the y-axis is most nearly
(a) 39,500 (b) 37,600 (c) 38,700 (d) 36,400
Homework Equations
Iy(circle)= .25(pi)(r^4)
Iy(triangle)= (1/12)h(b^3)
parralel axis theorem= Iy=Iy'+A[d(x)]^2
The Attempt at a Solution
Iy(circle)= 39760
I don't know what to do with the subtraction of the triangles. Will they cancell each other out and the answer would be nearest (a)?