1. The problem statement, all variables and given/known data Consider a Rocket in space, far removed from external gravitational influences, and suppose the engine starts up. As long as the engines are running, its instantaneous velocity v is a function of its mass. V is given by: V = A + B log(D/m) A, B, D are physical quantities, find the dimensions of A, B and D. 2. Relevant equations V = A + B log(D/m) 3. The attempt at a solution From here I will refer to dimensions as such: , ex. [V] dimensions of velocity. [V] = L/T thus [A] = L/T I need to still find the and [D]. I am not entirely sure here of how to approach. But would the dimensions of log be nothing, in other words [D] = M or mass. and thus = L/T as well. Or it this a stupid assumption to make? Thank you for the help.