Position vs time graphs show distance from observer. Velocity vs time graphs show speed relative to observer. Acceleration vs time graphs show speed change relative to observer
Constant velocity motion produces horizontal lines with zero slope. Changing velocity motion shows positive acceleration with upward slope. Slope indicates acceleration: positive for upward, negative for downward
Average acceleration is the ratio of velocity change to time interval. SI unit is meters per second squared (m/s²). Average acceleration equals slope of secant line on velocity vs time graph
Speed-time graph shows object's motion against time. Common units are km/h, m/s, and mph. Graphs can be drawn with horizontal time axis and vertical speed axis
Velocity remains constant throughout the time interval. Graph shows constant velocity (c) on Y-axis. Initial velocity must be positive
V-T graph shows motion by velocity versus time. Y-axis represents velocity, x-axis represents time. Slope indicates acceleration. Graph represents first equation of motion: v = u + at