Path-time diagram of straight motion - Recording the time with a counter

Using extremely simple means, the experiment P1.3.2.1 makes the definition of the velocity v as the ratio of the path difference Δs and the corresponding time difference Δt directly accessible to the students. The path difference Δs is read off directly from a scale on the track. The electronic measurement of the time difference is started and stopped using a key and a light barrier. To enable investigation of uniformly accelerated motions, the trolley is connected to a thread which is laid over a pulley, allowing various weights to be suspended.