PHY202: Mechanics I 6 credits (40-10-10)

Objectives

To give a profound understanding of kinematics of particles, Newton’s laws of motion and the conservation principles.

Contents

Concept of measurement: Units and dimensions of physical quantities, Scientific notation and significant figures, Estimation and order of magnitude, Kinematics of a particle: Motion and displacement; Velocity and acceleration, Free fall, Projectile motion, Uniform circular motion, Tangential and normal components of acceleration; Newton’s laws of motion: First law of motion and inertial reference frames, Second law of motion, Mass and momentum, Third law motion, Force of gravity, Contact forces, Elastic forces, Electric and magnetic forces of a charged particle; Conservation of energy: Concept of energy conservation, Work and power, Kinetic energy and potential energy, Conservative forces; Oscillations: Simple harmonic motion, Circular motion and SHM, Mass on a spring, Simple pendulum, Potential and kinetic energy in SHM, General Motion near equilibrium, Damped oscillations, Driven oscillation and resonance; Conservation of linear momentum and collisions: Centre of mass, Motion of Centre of mass, Conservation of linear momentum, energy of a system of particles, Collisions in laboratory and centre of mass frames in one dimension, Impulse and average force; Central forces: Inverse square law – Orbits, Circular orbits, Kepler’s law and two body problem.