Problem D6:
A thin rod has a non-uniform linear mass density. If the left end is at
x=0, the linear mass density is λ = c x^{n1} where
c is a constant. The length of the rod is n_{2} l_{0}.
Find the ratio of the rotational inertial I about the left end to
l_{0}^{2}. If I/(ml_{0}^{2}) = n_{3},
what is n_{3}? Note: n_{1}, n_{2}, and n_{3}
are unitless.

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