A force FBC acts within the cable connecting points A and B as shown in the figu

Question

A force FBC acts within the cable connecting points A and B as shown in the figure below. This force FBC has a magnitude of 800 N.

1. Write the force FBC in terms of the i, j, and k unit vectors. (Cartesian vector).

2. Calculate the moment vector created by this force at point O and write this moment as a Cartesian vector.

A force FBC acts within the cable connecting points A and B as shown in the figure below. This force FBC has a magnitude of 800 N. Write the force FBC in terms of the i, j, and k unit vectors. (Cartesian vector). Calculate the moment vector created by this force at point O and write this moment as a Cartesian vector.

Explanation / Answer

let t be the angle made with x axis

t=tan^-1(0.7/1.6)=23.63

fbc(x)=800cos(23.63)=732.9

fbc(y)=800sin(23.63)=320.66

fbc=-732.9(i)+320.6(j)+0(k)

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