Polygon Of Forces To Demonstrate Equilibrium

AI Thread Summary
To demonstrate that a 200 kg crate on a 25° incline is in equilibrium, a force polygon must be constructed accurately reflecting the forces acting on the crate. The weight vector of the crate should be drawn vertically downward, and the other forces must be represented in relation to this vector. Participants in the discussion seek guidance on how to properly plot the force triangle and ensure it satisfies the equilibrium condition. Clarification is also requested regarding the correct direction for the weight force in the diagram. Accurate representation of forces is crucial for confirming the crate's equilibrium on the slope.
sperrya
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Homework Statement


Use the polygon of forces to demonstrate that a 200 kg crate on a 25o incline is in equilibrium on the slope.


Homework Equations


See attached


The Attempt at a Solution


Please see attached for my attempt, I think I am in the right ball park, just need to know what seat to be in, i.e. how do I plot the answer to satisfy the question. Please help...

Thanks
 

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You must draw the force polygon so that the forces show the correct magnitude and direction. For instance, how must the weight vector of the box be drawn?
 
Hi there, thanks for your reply, I know I need to draw a force triangle of some sort, but unsure how to do it with the information I have. Even then, is this a correct polygon of force??

Thanks
 
What direction is the weight force usually drawn?
 
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