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Spring deflection problem using energy equations
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[QUOTE="ago01, post: 6562330, member: 695952"] Thank you for your reply. I think I see now why this doesn't work. To be clear, the reason is that at position d the mass is still off the ground, so it still has gravity pulling it back down towards earth. At the [I]instant[/I] it is at d (equilibrium) all forces cancel. But this doesn't imply that gravity suddenly turns off. "Letting the simulation run" past d would show that the weight doesn't stop at that point, but rather keeps falling beyond the equilibrium point due to gravity. So the equilibrium point is just the place where, at that instant, all forces are balanced. I think I get it. Thank you again. [/QUOTE]
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Spring deflection problem using energy equations
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