Describe this journey in as much detail as possible. Give values for velocities, acceleration and displacements. In 20 s the displacement of the car is equal to the area of the rectangle ...

Remember, acceleration is the same as gradient, and acceleration = velocity change ÷ time. Look at the graph. The acceleration of the vehicle in the first 10 seconds is: = (40 m/s – 0 m/s) ÷ 10 s ...