Statics

 Statics:

1. Rigid body       Center of mass         Translational velocity       Moment/torque        Choosing   axis  for torque calculation       + & - Moments         Right hand rule           Couple

2. Static equilibrium for free body

   • Zero net force      and       No initial translational velocity

   • Zero net torque / moment       and      No initial spinning          

3. Three coplanar forces         Triangle of forces           Common intersection point         Ladder       Beam under tension       

4. Body with fixed  pivot axis         Net force is always zero and translational velocity is automatically zero

5. Force amplification      Lever      Fulcrum         Balance