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Quincy
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The problem statement
A stiff uniform wire of mass M0 and length L0 is cut, bent, and the parts soldered together so that it forms a circular wheel having four identical spokes coming out from the center. None of the wire is wasted, and you can neglect the mass of the solder. What is the moment of inertia of this wheel about an axle through its center perpendicular to the plane of the wheel?
I (from end of rod) = mL^2/3
Itotal = 4 * ((M0/4)(L0/4)^2)/3 =
M0L0^2/48 -- What am I doing wrong?
A stiff uniform wire of mass M0 and length L0 is cut, bent, and the parts soldered together so that it forms a circular wheel having four identical spokes coming out from the center. None of the wire is wasted, and you can neglect the mass of the solder. What is the moment of inertia of this wheel about an axle through its center perpendicular to the plane of the wheel?
Homework Equations
I (from end of rod) = mL^2/3
The Attempt at a Solution
Itotal = 4 * ((M0/4)(L0/4)^2)/3 =
M0L0^2/48 -- What am I doing wrong?