Numerical Problems 5.1 Find the gravitational force of attraction between two spheres each of mass 1000 kg. The distance between the centers of the spheres is 0.5 m. ...

Short Questions 5.2 What is meant by the force of gravitation? Ans: The force of gravitation: There exists a force due to which everybody of the universe attracts every other body. This force is called the force of gravitation. ...

Notes Q1. Who gave the idea of gravity? Ans: The first man who came up with the idea of gravity was Isaac Newton. It was an evening of 1665 when he was trying to solve the mystery why planets revolve around the Sun. Suddenly an apple fell from the...