Problem: Mechanics is related to everyday experience. As the study of force, it deals with most objects because even when something is at rest, forces are still acting. A small child trying to push a table exercises a force even though he may not move it, while the same force exerted by an adult may move the table several feet. Even the chair which you are sitting-on is exerting an upward force to balance your weight. If it did not, you would fall through it to the floor.
Criticize the language used in the excerpt. Justify its authenticity.