mistofdragons asked: What happens to the energy needed in the following situation:
Two people are pushing on a crate in opposite directions, so the crate does not move.
(The vector sum of the forces is 0.)
I get it, but what is the chemical energy from the humans breaking down ATP ultimately converted into?
Is the box actually moving, but at infintesimally small amounts which equal out to an equilibrium?
Also, what about gravity? Is it an unlimited supply of energy? It causes massive amounts of acceleration on very massive objects, so where does the energy to produce this force come from?
Hmm… So more heat is released than would be if the box moved? That doesn’t really make sense to me. It doesn’t have to be humans, it could be two machines on both sides of the box pushing it, but not so hard that it collapses or its shape distorts.
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