code: public void setPhysical(float inertiaMoment, float alpha, float mB) {
          this.inertiaMoment = inertiaMoment >= 0 ? inertiaMoment : this.INERTIA_MOMENT_DEFAULT;
          this.alpha = alpha >= 0 ? alpha : ALPHA_DEFAULT;
          this.mB = mB >= 0 ? mB : MB_DEFAULT;
      }
docs: Use this to set physical properties.
  Negative values will be replaced by default values
  
  @param inertiaMoment Moment of inertia (default 0.1)
  @param alpha         Damping coefficient (default 10)
  @param mB            Magnetic field coefficient (default 1000)