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#### Hints where r is a position vector from any point on the line through P and Q to R and upo is the unit vector in the direction of line segment PQ

###### Mechanical Engineering

Hints where r is a position vector from any point on the line through P and Q to R and upo is the unit vector in the direction of line segment PQ. The unit vector upo is then multiplied by this magnitude to find the vector representation of the moment. MA 3.68,392,0 In Submit My Answers Give Up As shown in the figure, the member is anchored at A and section AB lies in the x-y plane. The dimensions are x1 = 1.4 m, yi-1.8 m, and 21 -1.5 m. The force applied at point C is F -220 i +140j+120 k| N Incorrect; Try Again; 4 attempts remaining; no points deducted (Figure 1) Part C Calculating the moment about AB using the position vector BC Using the position vector from B to C, calculate the moment about segment AB due to force F Fiqure 1 of 1 Express the individual components to three significant figures, if necessary, separated by commas Hints vec i,j,k] N-m Submit My Answers Give Up Continue

Part B)

Calculating the moment about AB using the position vector AC

Using the position vector from A to C, calculate the moment about segment AB due to force F .

Express the individual components to three significant figures, if necessary, separated by commas.

Part C)

Calculating the moment about AB using the position vector BC

Using the position vector from B to C, calculate the moment about segment AB due to force F .

Express the individual components to three significant figures, if necessary, separated by commas.

I dont know what im doing wrong but i keep getting those answers for part B. I know rABz is 0.

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