1. The problem statement, all variables and given/known data
Determine the magnitude of the projection of force F = 700N along the u axis.
2. Relevant equations
Cosθ = (A • B)/(||A|| * ||B||)
3. The attempt at a solution
I'm guessing I have to use the above equation, but my problem is finding the B vector. A is easy enough (<-2, 4, 4> I believe), but what about that B? Or am I thinking of this in the wrong way?
Determine the magnitude of the projection of force F = 700N along the u axis.
2. Relevant equations
Cosθ = (A • B)/(||A|| * ||B||)
3. The attempt at a solution
I'm guessing I have to use the above equation, but my problem is finding the B vector. A is easy enough (<-2, 4, 4> I believe), but what about that B? Or am I thinking of this in the wrong way?
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