Μοναδιαία διανύσματα
Μοναδιαία διανύσματα
Original Khan Academy video: Unit Vectors and Engineering Notation
https://www.khanacademy.org/science/physics/two-dimensional-motion/two-dimensional-projectile-mot/v/unit-vectors-and-engineering-notation
Help us caption & translate this video!
http://amara.org/v/CL5c/