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    Static Friction and Minimum Angle

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    A homogeneous and uniform rod of length 10ft and weight 100lbs rests in the corner of a room as shown. The coefficient of static friction between the rod and floor is (Us=.4). There is no friction between the rod and the wall although there is a compression force. What is the minimum angle that the rod can make with the floor and still be in equilibrium?

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    Solution Preview

    See the attached file for the diagram.

    The 4 forces on the rod are its weight m*g (downward -- at its center of mass halfway along the rod ), the normal force of the wall N1 (horizontal -- away from wall), the normal force of the floor N2 ...

    Solution Summary

    The solution provides step-by-step calculations and explanations for finding the minimum angle between two objects. A diagram is also included as an attachment.