Introduction to Engineering Mechanics

Engineering Mechanics * Experimental findings developed around the states of rest and state of motion of the bodies by Archemdes, Galilea and Newton is known as classical mechanics/Newtonian mechanics. * Albert Einstein put forth the theory of relativistic mechanics to explain the behaviour of high speed bodies. * Schrodinger and Broglie put forth theory of quantum mechanics to explain behaviour of particles when atomic distances are concerned. * The basic terminolgies in mechanics are 1. Mass 2. Time 3. Space 4. Length 5. Displacement 6. Velocity 7. Acceleration 8. Momentum 9. Continuum 10. Rigid body 11. Particle * The fundamental laws of Newtonian mechanics are 1. Newton’s 3 laws 2. Law of gravitation 3. Law of transmissibility of forces 4. Parallelogram law of forces 1. Newton’s first law states that every body continues in its state of rest or of uniform motion in a straight line unless it is compelled by an external agency. 2. According to Newton’s second Law Force µ Mass × Accel...