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MECHANICS, W - work (J), F - Net force (ΣF), s - displacement (m), theta -…

- - - - work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle.
  - - - ME = KE + ΣPE
        
        MEi = MEf
- - - - F(f)<=(mew s)R
        
        Static Friction
      - F(f)=(mew d)R
        
        Dynamic Friction
- - - - P = F(∆s/t)
        
        P = Fv
  - - - e = E(used) / E(total)
      - e = P(used) / P(total)
      - e = efficiency