These graphs also show if the object is moving at a constant ... vehicle following the green line for the first 3 seconds is speed = distance ÷ time = gradient = 6 m ÷ 3 s = 2 m/s.

Stage 3: The vehicle travels a further ... The gradient of a line segment on a distance-time graph gives the speed of the object for that stage of the journey. The steeper the line segment the ...