Gears and Speed (investigation)

To check which Hypothesis is more effective, you measure teeth on a driving gear, teeth on a driven gear and gear ratio. You set the robot to go for only 3 seconds. Then you measure how far the robot goes for 3 times and average the distances. Averaging is important, because it reduces the error created during the experiment. With the average, you get the speed by diving it by time, which is 3 seconds. Having got every data for all conditions and using both of the Hypotheses A and B, you predict speed. After that, you compare the predicted values to the actual value. The Hypothesis which gives you a similar value to the actual one is consequently B. This is simply because the actual value and the predicted one are close. Accodring to my data, for the setting that gave me 49.3cm/s in reality, Hypothesis A gave me 18.1cm/s whereas Hypothesis B 50.3cm/s.

Another aspect we need closely look at is that speed and the gear ratio has a inversely proportional relationship. In other words, if one decreases, the other increases. Also if one increases, the other decreases. According to my data, gear ratio 1 gave me the speed 30.2cm/s. However, gear ratio 3/5 gave me the speed 49.3cm/s