- #1
ZachChaos
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Homework Statement
A hollow, spherical shell with mass 1.85kg rolls without slipping down a slope angled at 32.0∘. Find the acceleration, friction force, and coefficient of friction.
Homework Equations
atan= rα
τ=rFsinΘ
I=matan
The Attempt at a Solution
I'm not quite sure where to begin. I started by making a FBD and using Newton's Second Law to determine Fs-mgsinΘ=max. Since the shape is a hollow sphere, the moment of impulse is I=mr2. I know the frictional force is causing the torque. Without the height of the ramp or the radius of the shell, I'm not quite sure how the proceed, but once I can solve for the acceleration, I should be able to solve for the frictional force and coefficient of friction quickly. This seems like a simple problem, but I'm at a loss with regards to how to approach it.