Gravitation Class-IX

This eBook contains detailed description of the chapter related to class exam and other exam.The salient features are : Introduction Newton’s Law of Gravitation Evidence of Newton’s Law of Gravitation Vector form of Newton’s Law of Gravitation Gravitation Gravity Characteristics of force of gravity Acceleration due to gravity (g) Relationship between g and G Factors affecting ‘g’ Principle of Launching of satelite Orbital Velocity Escape Velocity Types of satellites Kepler’s Law of Planetary Motion Derivation of Newton’s Law of Gravitation from Kepler’s Law