Newton’s Laws of Motion (NLM) represent one of the most significant achievements in the history of science. That said, they are not without their problems. Firstly, NLM treat gravitational motion as if it is caused by a force, which as Einstein discovered, is not true. Secondly, NLM define force in terms of the acceleration a mass undergoes. However, different observers are free to employ different coordinate systems which can result in the measurement of different accelerations. This in turn can result in different observers concluding that different aggregate forces are in action when it must be true that only one aggregate force is in action. The good news is that by incorporating the fact that gravitational acceleration is not caused by a force into a slightly modified version of NLM we can eliminate these problems, and in the process derive a new perspective on the concept of inertia.