- #1
verd
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Hey,
I know that this Moment of Inertia stuff is really easy, but I don't understand why I'm getting this one wrong.
[Image]
Find the moment of inertia [tex]I_{x}[/tex] of particle a with respect to the x-axis (that is, if the x-axis is the axis of rotation).
Particle a has mass m, and particle b has mass 2m.
...So wouldn't the Moment of Inertia just be:
(Moment of Inertia of a particle)
I = mr^2
[tex]I_{x} = m3r^2 = 3mr^2[/tex]?
Because they only asked me for the moment of inertia of particle a, and not the total moment of inertia, that should be right, shouldn't it?
I know that this Moment of Inertia stuff is really easy, but I don't understand why I'm getting this one wrong.
[Image]
Find the moment of inertia [tex]I_{x}[/tex] of particle a with respect to the x-axis (that is, if the x-axis is the axis of rotation).
Particle a has mass m, and particle b has mass 2m.
...So wouldn't the Moment of Inertia just be:
(Moment of Inertia of a particle)
I = mr^2
[tex]I_{x} = m3r^2 = 3mr^2[/tex]?
Because they only asked me for the moment of inertia of particle a, and not the total moment of inertia, that should be right, shouldn't it?
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