Question

The following table shows the duration of a year on some unknown planets of equal mass. Duration of Year Planet Duration of Year Y 224 days Z 320 days Which of the following best explains which planet is closer to the sun? Planet Y, because gravity is directly proportional to square of distance Planet Z, because gravity is directly proportional to the square of distance Planet Z, because the sun exerts a greater gravitational force on it than on planet Y Planet Y, because the sun exerts a greater gravitational force on it than on planet Z

Answer 1

Gravitational force between sun and planet is given by,

$F=\frac{GMm}{r^{2}}$

Thus, The force of gravitation is inversely proportional to the distance.

Kepler's law states that the square of period of planet is proportional to cube of semi major axis of its orbit.

The time period of planet is more when the gravitational force is less.

Thus, planet Y is closer to earth because sun exert greater gravitational force than planet Z.

Answer 2

Answer:  Planet Y, because the sun exerts a greater gravitational force on it than on planet Z

Explanation: took the test and got it right . plus give the other guy brainlist