Question

how did Kepler's law help Newton to arrive at the inverse square of gravity​

Answer 1

Answer:

In a sense, Kepler's laws gave Newton a goal toreach: whatever law he proposed for gravity, it had to be such as to yield Kepler's laws as a consequence. If it did not, it had to be wrong.Newton was able to show that the form he arrivedat, the inverse square dependence, was just what was needed to get Kepler's laws.