Replace the loading system by an equivalent resultant force

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Replace the loading system by an equivalent
resultant force and specify where the resultant’s line of
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Incorrect instruction, around the two minute mark he indicates that the only force causing a moment at A is the 8kN force at B. there is also the force at C that causes a moment at A.

mrprofile
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The moment at C is not the same as it is at A

amsellemwarren
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Great video sir but can't the question be approached in a different way....for instance, we can do a summation of all the forces....then take moments of all the forces at point A and make them equal to the moment of the resultant....where the distance of the resultant from point A is unknown which can be represented by solve for it ? Therefore obtaining its distance from point A

keletsoleburu
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FinalAnswer are you still doing problems?

bluntmachete
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why the magnitude around C i thogh the problem said at A

JonathanMartinez-gerg
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why cant u say where you got that -1k N

JonathanMartinez-gerg
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when i consider fx and fy in the last step ??

zeyadyasser