Physics A-Level
Cosine and sine rules for non-perpendicular vectors
What Cosine and sine rules for non-perpendicular vectors means in Physics A-Level, as defined for OCR.
Definition of Cosine and sine rules for non-perpendicular vectors
Check what you remember
Read the wording for your board, then hide it and explain Cosine and sine rules for non-perpendicular vectors in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
For non-right-angled triangles, the cosine rule gives the resultant magnitude and the sine rule gives an angle.
Topics that use Cosine and sine rules for non-perpendicular vectors
- Scalars and vectors (OCR A-Level)
Related terms
- Independence of perpendicular directions
- Magnitude and direction of a resultant
- Perpendicular components
- Scale drawing
- Tip-to-tail addition
- Vector quantity
- Vector resolution
- Vector triangle construction
Using Cosine and sine rules for non-perpendicular vectors in the exam
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