Entropic derivation of F=ma for circular motion
  We examine the entropic picture of Newton's second law for the case of circular motion. It is shown that one must make modifications to the derivation of F=ma due to a change in the effective Unruh temperature for circular motion. These modifications present a challenge to the entropic derivation of Newton's second law, but also open up the possibility to experimentally test and constrain this model for large centripetal accelerations. 
Michael Duncan, Ratbay Myrzakulov, and Douglas Singleton
gr-qc hep-th