- #1
elsternj
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Homework Statement
Find the moment of inertia Ix of particle a with respect to the x-axis (that is, if the x-axis is the axis of rotation), the moment of inertia Iy of particle a with respect to the y axis, and the moment of inertia Iz of particle a with respect to the z axis (the axis that passes through the origin perpendicular to both the x and y axes).
Express your answers in terms of and separated by commas.
Homework Equations
I = mr2
The Attempt at a Solution
Well the x-axis as the axis of rotation was the only one i got correctly in which the answer was mr2
The answer to the y-axis is 9mr2
The answer to the z axis is 10mr2 ... can someone explain to me why?
To me, it looks like the distance of particle a from the y-axis is 3r... where is the 9 coming from? As for the z axis, can someone explain that to me also?