Please show full steps and explaination Two forces and a couple arc applied to t

Question

Please show full steps and explaination

Two forces and a couple arc applied to the body as shown in the diagram. Calculate the equivalent force system at point A. (Note: The 35 kN m couple is denoted by the circular arrow. Use the right hand rule to determine the direction of the direction of the vector. The circular arrow is just another way to denote a moment/couple, similar to the double headed arrow mentioned in class. This couples double headed arrow would be pointing upward if shown on the diagram).

Explanation / Answer

equivalent force:=-20i+40/sqrt(10)k-120/sqrt(10)j (i,j,k are the unit vectors along x,y,z directions respectively)

(equivalent force is sum of all forces acting on the body summed vectorially and it can be repositioned to any part of the body)

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