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Femme_physics
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Homework Statement
http://img196.imageshack.us/img196/3732/31591397.jpg
An area slanted at an angle of 30 degrees turns aroun a vertical axis as depicted in drawing. The period time of the rotational motion is 3 seconds. On the surface is an object whose mass is 6kg.
The static friction coeffecient between the body and the surface is 0.4
Calculate at which max distance (from the rotation axis) can the object be placed so it won't slide up the surface?
The Attempt at a Solution
I wasn't really sure what to do! How does the torque on the surface affects the forces in my static equations? I just drew a free body diagram and tried solving for stuff randomly. I've no idea how to approach the solution to this. Any help/hints?
http://img405.imageshack.us/img405/8708/80167579.jpg
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