Position / Displacement
An object's position is its location at a given point in time
Position and displacement are both vectors
Average Speed
Average speed is the distance traveled divided by the time interval
Average speed is a scalar, and is measured in meters/second
Average Velocity
Velocity is the rate at which position changes.
Average velocity is the displacement during a time interval divided by the time interval
Average velocity is a vector, and is also measured in meter/second
Acceleration
Acceleration is the rate at which velocity changes
Acceleration is a vector
Units are m/s2
The Position Vector
Average Velocity
Instantaneous Velocity
Average velocity observed over an infinitely small time interval provides instantons velocity
Instantaneous velocity is the derivative of position with respect to time
Area under the velocity-time graph is the displacement during that time interval
Acceleration
Acceleration is the rate at which velocity changes
