Replace Loading on Frame By Single Resultant (HW Help)

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SUMMARY

The discussion focuses on calculating the intersection point of the resultant force's line of action with member BC in a static equilibrium problem involving forces F1 = 250 lb and F2 = 90 lb, and a moment M = 500 lb⋅ft. The correct resultant force is determined to be 245 i + 228 j with a magnitude of 335 lb. The intersection point is found to be x = 2.34 ft from point B, despite the initial miscalculation resulting in x = 2.19 ft. The confusion regarding the sign of the moment arises from the treatment of clockwise motion as positive.

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Homework Statement



upload_2018-2-16_22-25-11.png

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Q) Suppose that F1 = 250 lb , F2 = 90 lb , and M = 500 lb⋅ft . (Figure 1) Specify where the resultant’s line of action intersects member BC, measured from B.

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The Attempt at a Solution


Okay, so i am having severe problems with figuring out what i did wrong...
I am given : F1 = 250 and F2 = 90. The correct Force result is = 245 i +228 j with magnitude of 335 .
The moment given is 500 lb*ft.

I am trying to find the result's line of action that would intersect member BC measured from B. The correct answer is x = 2.34.

But, i got some other answer. I found the location of intersection with M = Fy * x (Fy because Fx would be 0 along the x-axis).

so , 500 = 228*x --> x = 2.19?? Which is wrong :(
 

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Actually , guys, i understand what i did wrong. I had to find the sum of moments from also the forces given. I get the sum of moments from the two forces as -1033 n*m. However, the value is negative? Nevertheless, when i summed -1033 with 500 , i get -533 n*m. So, M = fy*d --> d = -533/228 = -2.34.

I got the correct answer except the value i get is negative? Is this suppose to happen or was i suppose to treat clockwise motion as Positive?
 

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