This page contains NCERT book Solutions class -9 Gravitation starting from page 143 at the end of the chapter. I have also been writing the notes for this chapter to learn more about notes you can follow this link and to get the in-text questions solution please follow this link . If you want to get the solutions of first 11 questions follow this link.
For assignment on gravitation follow this link

Question 12
Gravitational force on the surface of the moon is only 1/6 as strong as gravitational force on the earth. What is the weight in newtons of a 10 kg object on the moon and on the earth?

This page contains NCERT book Solutions class -9 Gravitation starting from page 143 at the end of the chapter. I have also been writing the notes for this chapter to learn more about notes you can follow this link and to get the in-text questions solution please follow this link

Question 1

How does the force of gravitation between two objects change when the distance between them is reduced to half ?

Answer

According to Universal Law of gravitation , the gravitational force of attrection between any two objects of mass

These are NCERT solutions for class-9 chapter named Gravitation. Questions in this page are those questions that occur in between the texts at the end of each concept.and I have given the page number so you can find them easily in your book.
Page 134
Question 1
State the Universal law gravitation?
Answer
According to Universal Law of Gravitation every object in universe attracts every other object with a force known as Gravitational force.
It states that