Question

Write the three laws given by Kepler.
How did they help Newton to arrive at the
inverse square law of gravity?​

Answer 1

Explanation:

1. Every planet’s orbit is an ellipse with the sun at a focus
2. a line joining a sun and a planet sweeps out equal areas in equal time
3. the square's of a planet's orbital period is proportional to the cube of the semi major axis of its orbit

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