Vectors using the component method

AI Thread Summary
To find the resultant vector using the component method, the user has calculated the x-component as 2.56 m using the cosine of the angle θ = 31.5°. However, they need assistance in determining the y-component for the j direction. The discussion emphasizes that the solution involves basic trigonometry, specifically using the sine function for the y-component. A reference to a figure is noted as necessary for complete understanding. The conversation highlights the importance of applying trigonometric principles to resolve vectors into their components.
farhana21
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Use the component method to add the vectors and shown in the figure. The length of is 2.55 m and the angle θ = 31.5°. Express the resultant + in unit-vector notation.

The answer should be in the form of ...i + ...j

so far i have done

3*cos(31.5) = 2.56 so this is for ...i but I am unsure of how to find vector j for the y axis.

Please could someone advise me. All help and guidance given is much appreciated
 
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sin? ;)

I don't see a figure.
 
Well, my hint stays the same.
It is just trigonometry.
 
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Thread 'Have I solved this structural engineering equation correctly?'

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