what does a machine give us?
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As indicated by the math, the main benefit of machines is that they allow us to do the same amount of work by applying a smaller amount of force over a greater distanceA machine can be used to obtain a gain in speed. (ii) A machine can be used to lift a load in one direction by applying an effort in a convenient direction. (iii) A machine can be used to lift a heavy load by applying a less effort.
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