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## Homework Statement

A lawn roller in the form of a thin-walled, hollow cylinder with mass M is pulled horizontally with a constant horizontal force F applied by a handle attached to the axle.

a)If it rolls without slipping, find the acceleration.

b)If it rolls without slipping, find the friction force.

## Homework Equations

[itex]I_{Hollow Cylinder} = MR^{2}[/itex]

[itex]\sum \tau = f_{friction}R = I\alpha = MR^{2}\alpha[/itex]

[itex]\sum F = F - f_{friction} = F = Ma[/itex]

## The Attempt at a Solution

I'm really not sure...it seems like I have too many unknowns (R, a, alpha, friction)