If one clock is moving with constant velocity. The other clock moving with constant acceleration , both with respect to earth . And both clocks travel the same distance in the same time with respect to earth. distance/rate = [2d/a]1/2 Gamma is given for velocity clock. Would you expect the proper time for the accelerating clock to be greater or less than gamma t ? note: I have outlined a numerical problem with v=.6c and a = 414.m/sec^2 that I can post in homework section if there is not an obvious answer.