(adsbygoogle = window.adsbygoogle || []).push({}); A little help plz, rotational and youngs modulus

1. The problem statement, all variables and given/known data

A solid Ball with a mass of 3kg and r=1m is suspended in the center of a hollow ball of mass=1kg and r=3m. It is placed at rest on a 33 degree incline. after rolling 1km along the incline whats the final tangetial velocity? whats the objects final angular momentum?

2. Relevant equations

I know i need I=mr^2

and Im pretty sure this is a conservative problem so KEi+PEi=KEf+PEf

KE=Iw^2 and KE=1/2mv^2

PE=mgh or mgr

3. The attempt at a solution

Im not too sure how to input the problem at all...should I combine the two moments of Inertia? then go from there or should they both be done seperately? This problem is killing me

thanks in advance everyone

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# Homework Help: A little help , rotational and youngs modulus

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