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Engineering Mechanics

Forces, moments, equilibrium, section properties and friction: the statics every other engineering course builds on.

12 topics in the syllabus4 ready now (about 2h 45min of study)
Start with Resultant of a force system

Unit 1Forces and Equilibrium

  1. 1Resultant of a force systemResolving forces into components and combining them into a single resultant.35 min
  2. 2Moments and couplesTurning effect of a force, Varignon's theorem and force couples.Planned
  3. 3Free-body diagramsIsolating a body and drawing every force and reaction acting on it.Planned
  4. 4Equilibrium and support reactionsThe three equations of 2-D equilibrium applied to beams with pins and rollers.45 min

Unit 2Section Properties

  1. 5Centroid and second moment of areaLocating the centroid of composite sections and finding I about the neutral axis.45 min
  2. 6Radius of gyration and polar momentSection properties used for columns and shafts.Planned

Unit 3Friction

  1. 7Dry friction and the friction angleStatic and kinetic friction, impending motion and the angle of repose.40 min
  2. 8Wedges and belt frictionFriction applied to wedges, screws and flat belts.Planned

Unit 4Dynamics

  1. 9Rectilinear kinematicsPosition, velocity and acceleration in a straight line.Planned
  2. 10Newton's second lawKinetics of particles and the equation of motion.Planned
  3. 11Work and energyWork-energy principle and conservation of energy.Planned
  4. 12Impulse and momentumLinear momentum, impulse and collisions.Planned