Is the bar in static equilibrium?

AI Thread Summary
The discussion centers on determining if a bar weighing 5 kg is in static equilibrium, given a coefficient of friction of 0.2 between the bar and both surfaces. Participants express uncertainty about how to analyze the problem and visualize the bar's movement. They suggest defining variables for the normal forces at each end of the bar and writing horizontal and vertical statics equations, along with a torque equation. The emphasis is on setting up the equations without plugging in numbers until the final stages of the solution. The conversation highlights the importance of a systematic approach to solving static equilibrium problems.
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Homework Statement


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uk of fraction between bar and both surfaces is 0.2. Bar weighs 5 kg.

i) Is the bar in static equilibrium? If not, which end will fall down and which end will go up?

Homework Equations



F-uk*Fn

The Attempt at a Solution



Not sure how to even begin analyzing this. I cannot visualize the bar moving in either direction first. Any guidance is appreciated.
 
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Invent variables for the normal forces at the two ends. (Use different names.) Write the usual horizontal and vertical statics equations for the bar and one for torque. Use a symbol for the angle - don't plug in any numbers until the final equation.
 
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