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Which can change the direction of a downward input force into an upward output force? A. can opener B. ax blade C. crowbar D. screw

User Kkonrad
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1 Answer

3 votes
This would be a crowbar. If you have trouble understand this, just visualize what happens when you pry the lid of a box open with a crowbar. You push one end down, and the other end goes up.
User Igrek
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