Average Velocity and Displacement
On a velocity graph, the correct average velocity line, parallel to the time axis, will cut the velocity curve in such a way that equal areas are formed above and below the line. Consequently, the average velocity is the height of the rectangle whose area is the same as the net area between the velocity curve and time axis, bounded by the initial and final times. Drag the green line in the applet to the correct average velocity value, and then calculate the displacement.