 | Preston Smith - 1896 - 232 páginas
...weight on one hook and enough I oz. weights on the other hook to balance the first weight. Say that a body is in equilibrium when all the forces acting upon it, balance each other. Obs. Compare the directions in which the I oz. weights act. Compare the direction... | |
 | Charles Francis Adams - 1908 - 508 páginas
...is in motion and forces act upon it in such a way as to produce no change of motion, the forces are in equilibrium. A body is in equilibrium when all the forces acting upon it are in equilibrium. A body at rest is in equilibrium ; likewise a body having uniform motion in a straight... | |
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Because the apparatus balances, it is said to be in equilibrium. A body is in equilibrium when all the forces acting upon it are balanced. 