Simple machines do which of the following:
i. Reduce the mass of an object that needs to be moved.
ii. Reduce the distance an object needs to be moved.
iii. Reduce the amount of time needed to move an object over a distance.
iv. Reduce the force needed to move an object over a distance.
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Answer:
iv. Reduce the force needed to move an object over a distance.
Explanation:
Simple machines are used to make certain work easier. A simple machine can not reduce the mass of an object that needs to be moved or the distance it needs to be moved. Simple machines help us by reducing the force that needs to be spent to get some work done.
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