Contents

- Which material does sound travel fastest?
- Can a direction be negative?
- Can an object have zero velocity and still be accelerating?
- Is there a negative speed?
- Is negative velocity going backwards?
- Can a scalar be negative?
- Is it possible to have a negative speed a negative velocity?
- What’s a negative velocity?
- What is an example of negative acceleration?
- Can sound travel faster than the speed of sound?
- Which factor does not affect the speed of sound?
- What does negative velocity look like?
- Can forces be negative?
- What does it mean when velocity is positive and acceleration is negative?
- Can speed be negative or zero?
- Can speed of sound be negative?

## Which material does sound travel fastest?

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