The owner of a building needs to remove several shingles. Instead of lifting the shingles up by hand, he decides to use a long crowbar as a lever to lift them.

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anonymous · Answer

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anonymous · Answer

By using this simple machine, the man is choose 1 (increasing or decreasing) the amount of force needed to do the job, and he is choose 1 ( decreasing or increasing the distance over which the force is applied. @Isaiah.Feynman

isaiah.feynman · Answer

I think he's increasing the distance over which the force is applied..