- #1
envscigrl
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Help! tangent axis
Use the parallel-axis theorem to find the moment of inertia of a solid sphere of mass M=3.80kg and radius R=2.30m about an axis that is tangent to the sphere.
I am being thrown off this problem because the axis is TANGENT to the sphere and not through the center. According to the equations in my book i thought the equation I would use would be:
I= Icm +Mr^2= 3/2 Mr^2
but it didnt work! am i not using the parallel axis right??
Thanks for helping!
Use the parallel-axis theorem to find the moment of inertia of a solid sphere of mass M=3.80kg and radius R=2.30m about an axis that is tangent to the sphere.
I am being thrown off this problem because the axis is TANGENT to the sphere and not through the center. According to the equations in my book i thought the equation I would use would be:
I= Icm +Mr^2= 3/2 Mr^2
but it didnt work! am i not using the parallel axis right??
Thanks for helping!