Changing Velocities Questions

1. Apr 14, 2012

Prototype44

1. The problem statement, all variables and given/known data

I need to know if these set of velocities changing correspond to acceleration or
deceleration?

-0.9m/s - +4m/s
+4m/s-4.5m/s

2. Relevant equations

3. The attempt at a solution

I think that

+4m/s-+5m/s is considered acceleration in the same direction
-5m/s-7m/s is considered acceleration in the negative direction

My chemistry told me that it the first example would be an example of a deceleration then an acceleration due to it becoming zero and then accelerating to +4m/sec and that the same idea applies to the second example.

Last edited: Apr 15, 2012
2. Apr 14, 2012

Saxby

m/s (which is Metres per second) is the unit for Velocity not acceleration.