A large block is being pushed against a smaller block such that the smaller block remains elevated while being pushed. The mass of the smaller block is m = 0.60 kg. m=0.60 kg. It is found through repeated experimentation that the blocks need to have a minimum acceleration of a = 15 m / s 2 a=15 m/s2 in order for the smaller block to remain elevated and not slide down. What is the coefficient of static friction between the two blocks?