and acceleration = velocity change ÷ time. To find the distance travelled, look at the area under the graph. In the first 10 seconds this is the area of the triangle, ½ × 10 s × 40 m/s = 200 m.

Save guides, add subjects and pick up where you left off with your BBC account. The gradient of a velocity-time graph at a particular time gives the acceleration of the object at that time.

This is basically just series of lines on the track that the cart uses to determine its position (and thus velocity and acceleration). With a cart mass of 1207 grams (mass 1) and a hanger mass of ...