Practice Problem: Find the vector sum of these two vectors by using components: 45 m, 55°; 70 m, 135°. Answers: magnitude = 90 m; direction = 105°. y ?B Ry = Ay + By ?R = ?A + ?B O Rx = Ax + Bx ?A (b) The resultant ?R and its components x
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For vector A: Ax = 45 * cos(55°) = 45 * 0.5736 = 25.812 Ay = 45 * sin(55°) = 45 * 0.8192 = 36.864 For vector B: Bx = 70 * cos(135°) = 70 * (-0.7071) = -49.497 By = 70 * sin(135°) = 70 * 0.7071 = 49.497 Now, we can find the components of the resultant vector Show more…
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