Question

In the construction of a bridge, the support cables form specific angles to each other. The angle between two vectors representing the tensile force in two cables can influence the load distribution of the structure. Data: U=(3,4,0) V=(1,2,2) The scalar product is used to calculate the cosine of the angle θ between two vectors, according to the formula: Where: Alternatives for question 2 43°, cos(43°)=0.731 60°, cos?(60°)=0.5 45°, cos?(45°)=0.707 30°, cos?(30°)=0.866

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Hermann

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