ResultsThe time it took the members of the group to walk up the stairs had less than two seconds difference. There was also less than a two second variance between the running times of the group members. Our walking power had only a little over 100W of difference, while our running power differed by just under 300W. ConclusionsOur powers were very different from each other. The reason that the power was different was because we had different masses. The different masses of our bodies allowed our feet to exert more force on the steps, creating more power. Faye was the only person in our group who came close to producing the same amount of power while walking and running, and even she was over 100W away. Going at a faster speed up the flight of stairs made the force of our feet larger since the force is the mass times the acceleration. The person running up the stairs needs to hit every step, otherwise their acceleration is sped up by the extra force they exert to leap from one step to the next. Our data supported this because Antonia was the only one in the group to skip steps and the power she produced was higher by far than the rest of us.