Question: 1. Given three vectors a : a = 60 m @ 120, b : b = 21 m @ 180, and c : c =

Given three vectors a : a = 60 m @ 120", b : b = 21 m @ 180, and c : c = 42 m @ 240. What magnitude of the resultant vector r = a + b+c? Please round your answer to one decimal place.Two forces act on a lo.?-kg object. The rst force has a magnitude of F1 = Si] N and is directed so\" counterclockwise with respect to the positive x-axis. The second force is F; = 20 N at 12D\" counterclockwise with respect to the positive K-BKlE. What is the magnitude of the acceleration of the object resulting from the application of these two forces to the object? Please round 1your answer to two decimal places. Let vector V =7i+ 9j + 13 k. What is the magnitude of V? Please round your answer to one decimal place

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