Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 261
the force, it will go twice as fast; also it will go inthe direction in which it is thrown, if no other force actsupon it. The third law means that there is always a force, called thereaction, which acts in the opposite direction to any givenforce. To illustrate this, consider your own weight. This… … Figure 277.— A Clothes-line Postwith Balanced Forces. you lift is counteracted by a pound in excess of your weightwhich is pushed downward by your feet. 295. The Parallelogram of Forces. — When two forces act upon a body, the body cannot move in both directions, but moves in the direction of the…
Physics
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