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.

The width of the two taller parts of the card are measured and the card is attached to a trolley. We then place a light gate at the bottom of the slope and release the trolley. The light gate is ...

Find the acceleration of the sledge when t = 6s. Draw a tangent to the curve at the point where t = 6s and draw two lines to form a right angle triangle.