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### Resultant

A vector that results from the sum of two other vectors; it always points from the first vectors tail to the last vectors tip

### Displacement

a change in position having both magnitude and direction; is equal to the final position minus the initial position

### Position-Time Graph:

a graph that can be used to determine an object's velocity and position, as well as where and when the two objects meet, by plotting the time data on a horizontal axis and the position data on a vertical axis

### Average Velocity

the change in position divided by the time during which the change occurred; is the slope of an objects position-time graph

### Average Speed

how fast an object is moving; is the absolute value of the slope of an objects position time graph