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xfreedom
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Homework Statement
A thin rod of mass M and length L rests on a frictionless table and is struck L/4 from its CM by a clay ball of mass m moving at speed v. The ball sticks to the rod. Determine the translational and rotational motion
Homework Equations
Irod=1/12 mr^2
Irod=1/3 mr^2
L=mrv=Iw
The Attempt at a Solution
I fount out the translational velocity, used the conservation of linear momentum.
But I'm kind of stop in the second part.
I found out:
m(1/4 l)v=Iw
but what is I?
I guess perhaps we needs to find out the new center of mass, is it (1/12 Ml^2)+(mr^2) where r is calculated with the new center of mass? Is it(m 1/4 l)/(M+m)? And again which Irod should I use?
thank you for help.
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