1. The problem statement, all variables and given/known data If a = d/t how can it also = f/m ? I cant see a common unit between the two equations. In the first one if I covered 50m in 20 s I'd be accelearting at a rate of 5m per 2s or would it be 5m per 2 s^2. So how does then become force * mass ? what would force * mass become as a unit ? would it newtons per kilo ? and how does this then become meters per second ? 2. Relevant equations 3. The attempt at a solution whoa...totally unsure where to start in terms of a solution.