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Detailed Questions and Answers (8 marks each)
1. Which method is used for the addition of forces? Explain with an example.
2. Resolve the vector into its rectangular components.
3. Find the magnitude and direction of a vector whose rectangular components are given.
4. Explain torque or moment of a force.
5. What is meant by the moment of force? Explain with an example.
6. Describe an experiment to find the center of gravity.
7. Define a couple. Give examples and the torque produced by a couple.
8. What is meant by equilibrium? Describe the conditions of equilibrium.
9. What are the three states of equilibrium? Explain each with examples.
10. How does the stability of a body relate to the position of its centre of mass?