problem: a 1350 kg car is moving at 23m/s. the driver brakes to a stop. the brakes cool off to the temperature of the surrounding air, which is nearly constant at 15 celsius, what is the total entropy change? i know that S=integral of dQ/T since T is constant i can take it out of the integral and integrating dQ is just Q so s= Q/T how can specific heat, Q, relate with force F i konw that the units for Q is J , and F is N (which is kg*s^2) is it simply just converting the units from F to J? if so, what are the units for J?