Subdisciplines of mechanics include. 1  Statics, the study of non-moving bodies under known loads, how forces affect static bodies. 2  Dynamics the study of how forces affect moving bodies. Dynamics includes kinematics (about movement, velocity, and acceleration) and kinetics (about forces and resulting accelerations).
1 Researchers studied a group of men that typically walk approximately 10,000 steps per day (as measured by a pedometer) and asked them to reduce their steps to only 1,350 per day. 2  This meant taking elevators instead of stairs, driving to work and lunch.
U.S. children ages 6 to 11 average approximately 10,400 steps per day for boys and 9,400 for girls. That amounts to roughly 5 miles of walking per day. Boys aged 12 to 17 will take 8,400 and girls 6,400 steps per day, or 3 to 4 miles.wo thousand steps equals roughly a mile of walking. So, the average American walks about 2.5 to 3 miles per day. Assessing the number of steps a person takes during a day is complicated by the inaccuracies of pedometers and accelerometers.