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Doc Al
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Feb11-13, 12:01 PM
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Some confusion about balanced forces..

Quote Quote by ViolentCorpse View Post
According to my understanding, The forces on the object are gravity (downward force) and the normal force of the ground (upward) and I think they are equal.
They are only equal under certain circumstances. Such as when the object is no longer accelerating.
I'm just unable to pin down where the normal force is getting that extra force from.
That "extra" force comes from the collision of the moving object with the ground. The material structure of the ground allows it to resist the movement of the object by exerting an upward force on it.