Calculate the angular momentum

Homework Statement

A batter swings a 0.9 m long bat. Calculate the angular momentum of the bat relative to its axis of rotation. Assume the bat has a mass of 0.6 kg and rotates at 3 rad / s
(Hint: Approximate the bat by a rod, or a long thin cylinder, and find the moment of inertia.)

I=mr^2
ω=v/r
v=ωr
L=Iω

The Attempt at a Solution

L=Iω
I=mr^2
so L=(0.6)(.9^2)(ω)

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