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## Homework Statement

What's the projection of the resultant force onto an said axis?

## Homework Equations

Sine Law, Cosine Law

## The Attempt at a Solution

For problem 2/20, the projection onto the b axis was found by multiplying the resultant force by the cosine of 30 degrees. Why does this method not work for problem 2/4? Why do we need to add in the b-component of the resultant force? The questions are uploaded as pictures along with the solutions. Thank you!