Which Statement Is True About the Unit Vectors

question 28

Multiple Choice

Which statement is true about the unit vectors , and ?

• A)Their directions are defined by a left-handed coordinate system.
• B)The angle between any two is 90 degrees.
• C)Each has a length of 1 m.
• D)If is directed east and is directed south, points up out of the surface.
• E)All of the above.

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