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Physics 1.3 scalars and vectors
- 1. Topic 1 – Physical Measurement 1.3 – Vectors and Scalars
- 4. For a scalar quantity a “-” sign is (usually) meaningless
- 14. The one vector that can be used to cause the same effect as the group is called the resultant vector.
- 15. Often (but not always) the resultant is drawn as a double headed arrow.
- 20. Join the starting point to the end point and mark this as the resultant.
- 28. This is done using the sine and cosine identies a a x a y θ