4 Forces

HYDROSTATIC PRESSURE
4.1 Hydrostatic Pressure (hρg)
4.2 Pressure Acts in All Directions
4.3 Atmospheric Pressure

UPTHRUST
4.4 Origin of Upthrust
4.5 Archimedes’ Principle
4.6 Law of Floatation
4.7 Upthrust Work Examples
4.8 Upthrust Demonstrations

TRANSLATIONAL EQUILIBRIUM
4.9 Translational Equilibrium

ROTATIONAL EQUILIBRIUM
4.10 Moments
4.11 Rotational Equilibrium (pivot or hinge)
4.12 Rotational Equilibrium (centre of mass)
4.13 Centre of Mass
4.14 Couple

STATIC EQUILIBRIUM
4.15 Static Equilibrium
4.16 Why must 3 forces intersect at the same point?
4.17 Free Body Diagrams