9.2 The Dot Product

Dot product

a · b

Orthogonal

Perpendicular, when the dot product of two vectors equals 0

Component of u along v

Resolve

To ______ a vector u is to split it up into one parallel to v and one orthogonal to v

Projection of u onto v

Work

The _____ W done by a force F in moving along a vector D is W= F · D