system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Since F=MA, is no force applied to a wall when leaning on it?

Similarly, if a truck were trying to remove a tree stump with a chain,and the chain is pulled tight but neither the truck nor the stump were moving, is the force 0 since there is no acceleration? Where does this energy go?
gpt
F=ma is not actually the expression.

NET force = ma

The combination of all forces will result in acceleration.

If the combined forces result in zero of net force, no acceleration occurs.  Even though they're are multiple, and often very strong forces present.