Question

assignment 1 : centripetal force, kepler's first law, kepler's second law, kepler,s third law​

Answer 1

There are actually three, Kepler's laws that is, of planetary motion: 1) every planet's orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is proportional to the cube of the semi-major axis of its .

Answer 2

Answer:

1st law  = planetary orbit is elliptical of the sun at a focus

2nd law = the radius vector from the sun to  a planet sweeps equal areas to equal form

3rd law = a planet orbital period of proportional to size of the orbit

Explanation: