Considering vector A = 100 N, directed to the East and vector B = 75 N, 60° from positive x-axis, capture the image of the resultant vector A - B. Then, try to find the resultant vector using the Law of Sines and Cosines
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Expert's answer
2021-10-15T10:24:12-0400
Explanations & Calculations
Angle POQ = 60 degrees.
To calculate the magnitude of PQ, apply cosine law to POQ triangle.
cos60PQ2PQ=2×75×1001002+752−PQ2=8125N2=2513N
To find the direction of the resultant vector, consider the vector addition on the POQ triangle,
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