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• March 1, 2022

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• PHY101 Physics I © Dr.Cem Özdoğan

• 3-5 Unit Vectors

• Unit vectors pointing in the x-, y-, and z-axes are usually designated by respectively
• Therefore vector, a , with components ax and ay in the x- and y-directions, can be written in terms of the following vector sum:

• A unit vector
• Has magnitude 1
• Has a particular direction
• Lacks both dimension and unit
• Is labeled with a hat: ^

• We use a right-handed coordinate system
• Remains right-handed when rotated