One of the most basic things students do in a physics lab is to collect data and use that to build a model. Most of these models come in the form of a mathematical function. But here is the problem.

In a distance-time graph, the gradient of the line is equal to the speed of the object. The greater the gradient (and the steeper the line) the faster the object is moving.

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. Displacement ...