The branch of physics dealing with the motion of bodies as well as bodies at rest or equilibrium is called mechanics. Since motion is such an important feature of the world around us, it is the logical subject to begin the study of physical phenomena. This course entitled Elementary Mechanics is offered as the first elective in physics. As the title suggests, in this course students will study the elementary concepts and laws of mechanics; including the laws of conservation of linear momentum, angular momentum and energy.

We use the concepts and laws of mechanics constantly in everyday life and in engineering applications. We use them when we ride bicycles, lift heavy loads, play tennis or construct bridges. Many fascinating developments of the space age, such as launching of space probes and artificial satellites, are direct applications of the laws of mechanics. These laws allow us to predict with remarkable accuracy the motion of planets in the solar system as well as to explain the formation of stars and galaxies. Students will study the applications of the concepts and laws to simple and familiar physical situations in Block 1 of this course. Their applications to more complex situations, such as planetary motion, many-particle systems, rigid body dynamics and motion in non-inertial frames of reference form the subject of Block 2.

Mechanics is the most fundamental area of physics. A sound knowledge of mechanics is needed to study vibrations and waves, electromagnetism, thermal physics, quantum mechanics, special and general theories of relativity, etc.

Block 1: Concepts in Mechanics:
1. Motion
2. Force and momentum
3. Work and energy
4. Angular motion
5. Gravitation

Block 2: Systems of Particles:
6. Motion under central conservative forces
7. Many-particle systems
8. Scattering
9. Rigid body dynamics
10. Motion in non-inertial frames of reference.

Appendix A: Conic sections
Appendix B: Methods of determination of moment of inertia.

Assessment is by one assignment (30%) and a final examination (70%).

Programmes for which this course is required or in which it can be included:
Bachelor of Science.