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## Homework Statement

A hollow spherical shell is rolling without slipping or sliding down a board that is tilted at an angle of 35.0° with respect to the horizontal. What is its acceleration?

## Homework Equations

I=2/3mr^2

if an object rolls without slipping or sliding:

v = rw

that means that

a = r*alpha

right?

## The Attempt at a Solution

I imagine the solution would be something times g sin(35) but I am not sure exactly how to go about solving this one.