4.2. Key Definitions http://www.ck12.org
4.2 Key Definitions
Symbols{
∆(anything) Final value−initial value
anything 0 Value at time 0Scalars
t Time in seconds,s
d=|∆~x 1 |+|∆~x 2 | Distance(in meters,m)
v=|~v| Speed(in meters per second,m/s)Vectors
~x=~x(t) Position
∆~x=~xf−~xi Displacement
~vi Initial velocity
~vf Final velocity
∆~v=~vf−~vi Change in velocity
~a=∆∆~vt Acceleration