maths

A vector of magnitude 30 and direction eastwards is added with another vector of magnitude 40 and direction northwards. Find the magnitude and direction of resultant with the east.

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asked by jha
  1. draw a diagram, and you will see a 3-4-5 right triangle. So, the final displacement is 5, the hypotenuse.

    The direction (measured from due east) is x, where tan(x) = 40/30

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    posted by Steve
  2. How they becomes 57° from 37°??

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