Answer:
They had different goals.
Step-by-step explanation:
Although they focused their studies on astronomy and the factors that compose it, we can see from reading the above question that Kepler and Newton had different purposes in their studies (Newton even used many of Kepler's notes to take as a basis for their theories). As we can see, Keple's goal is to understand how fast the planets moved and what factors resulted and influenced that speed. On the other hand, Newton's goal was to know how the planets would not get out of their places, even moving at high speeds.