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swpz
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Homework Statement
A 60kg object placed 1m from B is drawn across a beam laid down across two support points. Support point A can only withstand 600N of force before giving way. Support point B is assumed to be capable of withstanding any amount of force.
The beam is 6m in length and weighs 20kg. How far can the object be moved across before support point A collapses?
Homework Equations
The Attempt at a Solution
So I think this is a statics question, at least, this is the context within the course material that poses the question.
So, first I drew a diagram as follows:
Then did this:
So I can solve the forces for when the object is at 1m just fine - I think at least. But that is not what the question is asking. How do I get varying distances with this without resorting to doing manual calculations one at a time for each varying distance? Is there an alternative way?
Using algebra I can break down the equation and rewrite as this:
But this goes no where as F_B is still an unsolved value so rewriting is meaningless. F_B's final value is linked directly to the d_P is at and so intuitively, I cannot think of a way that either can be isolated as they are coupled.
Actually... am I approaching this question the wrong way entirely?Thanks for any help.