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## Homework Statement

A hollow sphereical shell rolls without slipping down a 38 degree slope, mass 2kg, find the acceleration the friction force and the minimum coefficent of friction needed to prevent slipping

## Homework Equations

mgh, E=1/2mv^2=1/2Iw^2

## The Attempt at a Solution

i don't really know where to start, i know moment of inertia will affect how fast this will accelerate due to gravity but I am not given it so i don't know to solve it, hints would be great please!