# Force: Newton’s Laws of Motion

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#### Basic Concept ✔

• What is Force?
• Necessity of Force
• Effect of Force
• Characteristics of Force
• State of Motion

#### Types of Forces ✔

• Contact Forces
• Non-Contact Forces
• Force Field

#### Galileo’s Marble Tray Experiment ✔

• Terminology
• Concept of Balanced, Unbalanced and Resultant Force
• Aristotle’s Concept of Motion
• Galileo’s Concept of Motion
• Galileo’s Experiments

#### Newton’s First Law of Motion ✔

• Statement and Explanation
• Concept of Inertia of a Body
• Types of Inertia
• Everyday Examples of Inertia

#### Newton’s Second Law of Motion ✔

• Statement and Explanation
• Concept of Momentum
• Concept of Force
• Newton’s First Law as Special Case of Newton’s Second Law
• Impulse of Force

#### Newton’s Third Law of Motion ✔

• Concept of Action Reaction Pair
• Examples of Action Reaction Pair or Newton’s Third Law of Motion
• Concept of Inertial and Non-Inertial Reference Frames

#### Applications of Newton’s Laws of Motion ✔

• Everyday Examples
• Apparent Weight in Lift

#### Law of Conservation of Momentum ✔

• Statement, Explanation and Proof

#### Elastic Collision ✔

• Concept and Analytical Treatment
• Inelastic Collision
• Newton’s Law of Gravitation

#### Moment of Force

• Rigid Body
• Rotational Motion and axis of Rotation
• The Concept of Moment of Force
• Applications of Concept of Moment of Force

#### Couple

• Concept of Couple
• Characteristics of Couple
• Applications of Couple
• Moment of Couple
• Equilibrium of a Body

#### Centre of Mass

• Centre of Mass of System of Discrete Masses
• Centre of Mass of System of Continuous Mass
• Centre of Gravity
• Relative Position of Centre of Mass and Centre of Gravity
• Numerical Problems on Locating Centre of Mass
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