We use the words work, energy and power in our day-to-day life often. However, their meaning differ from the meaning we get from scientific definitions.
- The scalar product or dot product of any two vectors A and B, denoted as A.B (Read A dot B) is defined as , where q is the angle between the two vectors.
- A, B and cos θ are scalars, the dot product of A and B is a scalar quantity. Both vectors, A and B, have a direction but their scalar product does not have a direction.
- B is the product of the magnitude of A and the component of B along A. Alternatively, it is the product of the magnitude of B and the component of A along B.
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