Question

F2-40 N F70N 2 m 3 m 2 m

Determine the angle θ between the two cables. Suppose that a = 2.5 m and b = 4.2 m . (Figure 1)

Express your answer using three significant figures.

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Answer #1

the positionvector of the cable AC TAC - (-2i+2.5j+4.2k)-(27-2.5j+3) the positinvector of the cable AB AB2 +57-3 so the angle -22 +52 + (-3)2 × |(-4)2 +52 +1.22 29.4 40.2 e-42.9o

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