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## Homework Statement

I am a teacher currently teaching very introductory physics. I just came across a test question asking the students to choose whether acceleration is vector or scalar.

## Homework Equations

## The Attempt at a Solution

I have always thought that acceleration can be

**either**vector or scalar. For example, we call 4 m/s a "speed", and 4 m/s west a "velocity". Similarly, 10 m/s

^{2}is scalar while 10 m/s

^{2}west is a vector, but they are both just called "acceleration".

Am I wrong? Thank you in advance!