Last week in physics, we completed what was called the Newton's second Law Lab in groups, in which we were to determine the mass of a cart without using any scales or balances. The procedure was only meant to take us one, maybe two, class periods. However, our group went into a third period. We kept trying to collect new data because we had a larger percent error than we would have liked and assumed we were doing something wrong. We ended up spending a lot more time trying to get better results than we should have, and then learned that our results were fine to begin with and that we had done nothing wrong except waste time trying to get better ones. Because of this, we have now lost some class time to get other things done. We now know that sometimes results may not look exactly the way you want them to in a lab, even when you're doing everything right. In the future, we won't let results that aren't perfect hold us back when we know what we did was correct.