- #36
h1a8
- 87
- 4
K^2 said:If you put an object on the table, all of the above logic still applies. Yet, a table doesn't use up any energy to support an object. The above logic is, therefore, flawed.
The amount of energy required to support an object by a person has everything to do with biology of a muscle and cannot be resolved from physics considerations alone.
I understand that. I was referring to a force that will create acceleration when no opposing force is acting (holding forces such as tables don't cause acceleration if no opposing force exists).
From my understanding, if a force (accelerating force) is acting on an object while the object isn't moving (due to some opposing force) then the energy fueling the force is being held (still potential energy). Once the other opposing force is eliminated the energy is now released and causes work to be done. A perfect example of what I'm talking about is a spring that is compressed and held.