Vector a is 2. 80 cm long and is 60. 0° above the x-axis in the first quadrant. Vector b is 1. 90 cm long and is 60. 0° below the x-axis in the fourth quadrant. Use components to find the magnitude and direction of a) a+b; b) a-b; c) b-a. In each case, sketch the vector addition or subtraction and show that your numerical answers are in qualitative agreement with your sketch.
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Vector a is 2. 80 cm long and is 60. 0° above the x-axis in the first quadrant. Vector b is 1. 90 cm...
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