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Why is it more efficient for a labourer to raise bricks up
to a brick layer by the use of a rope and pully than by
carrying them up a ladder ?
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Answer Posted / guest
Because the labourer has his own weight to raise as well as
that of the bricks when ascending a ladder, while with the
rope and pully only the load is raised and the energy is not
wasted.
| Is This Answer Correct ? | 1 Yes | 0 No |
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