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(Part b) Write the vector sum F1+F2 +F3 in terms of the unit vectors i and j. Use Fi = Fi), F, = |F2), and F3 = |F3| to be th

α E +X 0 E

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S fisina say & F cos f3 sino F₂ caso & F3 Vertical component! (Ei sin + 62 - 63 Coso) j Horizontal component: (fi cosa F3 sifit fz + F3 = (ficosa fa sino) i +(f, sind tf2 - F3 coso Di = [Fi cosa + F2 (0)2 + 13 (-sino » 1 i i + [f, sina + f2 (1) +F3

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