Which law of motion accounts for the following statement?"The gravity of the Sun causes the planets to move in a circular path."

The law that accounts for that exact statement is the law that says that

most people don't understand these things very well.

A better statement is:

"The gravitational forces between the Sun and each planet cause each planet

to move in an elliptical path."

The laws that account for that behavior are:

- - Newton's second law of motion: (Force) = (mass) x (acceleration)

- - Newton's law of universal gravity