The discussion revolves around a physics problem involving a 10 Kg mass resting on an inclined plank with a coefficient of static friction of 0.2. Participants are exploring the conditions under which the mass will begin to slip as the angle of inclination is increased.
There is an ongoing exploration of the problem, with participants attempting to derive the angle at which slipping occurs. Some have provided insights into the relationships between forces, while others are still grappling with the mathematical setup.
Some participants question the assumptions regarding the normal force and its dependence on the angle of inclination. There is also a note about ensuring the question is posted in the appropriate section for homework help.
pol1313 said:
That's all you need, if you can express it mathematically.pol1313 said:
Give it try. What's the component of gravity parallel to the plank? What's the normal force? What the maximum static friction?pol1313 said:
Not quite right. The normal force depends on the angle. (The normal force would equal mg if the plank were horizontal, but not when it's tilted.)pol1313 said:
That's it. (As long as you know how to get that first line: μ = sinθ/cosθ.)pol1313 said:
Just making sure you were able to figure out that first line. (As opposed to finding it in some book.) You didn't show your steps, perhaps because that part was clear to you. If so, great!pol1313 said:
