Acceleration close accelerationThe rate of change in speed (or velocity) is measured in metres per second squared. Acceleration = change of velocity ÷ time taken ... to 28 m/s. Calculate the ...

They are afraid to embrace the power of the graph ... to find the acceleration from this distance-time data. Let's go back to our kinematic equation (assuming we start with zero velocity).

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.