li1n3etDarencessyC li1n3etDarencessyC

20-10-2016
Chemistry

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Why is it easier to carry heavy things on wheels?

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cmiller2 cmiller2

20-10-2016

Rollers have been used since ancient times to move heavy objects without having ... In this wheelbarrow, the axle, raised up by the wheels, acts as the fulcrum point. ... How could you improve your wheelbarrow to make it even easier to lift.

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