- #1
DrMcDreamy
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Homework Statement
This is a two part problem, I answered the first but was wondering if I did the second part right.
a) Consider a rigid 3-mass system (with origin at the leftmost mass 3 kg) which can rotate about an axis perpendicular to the system. The masses are separated by rods of length 3 m, so that the entire length is 6 m. 3.8
b) Now consider a rotation axis perpendicular to the system and passing through the point x0 at a distance 2.3 m from the leftmost mass 3 kg.
Find the moment of inertia of the 3-mass system about the new axis. Answer in units of kg · m2.
Homework Equations
I= [tex]\sum[/tex]miri2
The Attempt at a Solution
I= (3 kg)(2.3)2 + (2 kg)(.7)2 + (6 kg)(3.7)2 = 98.99
Is this correct?