Chapter 2: Forces

2.1: Concept of Weight

1. Difference Between Mass and Weight

2.2: Weight and Center of Gravity

1. Center of Gravity
2. Center of Gravity of Irregular Shape
3. Location of Axis

2.3: Weightlessness in an Elevator

1. Real and Apparent weight
2. weightlessness in Satellites and Gravity Free system

2.4: The Moment of Force

1. Introduction to Torque or Moment of a Force
2. More on Torque
3. Problem on More on Torque
4. Principle of Moment
5. Problem on Principle of Moments