Can sponge,soft rubber, pillow or any substance like thes can be said as machine for reducing effort sometimes ?
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no soft things you not need to reduce effort you need soft floor.
soumyakapis35pdtdz0:
but while carrying a heavy thing (let's say a heavy bag) we need a soft and sponge handle.
in this case we are carrying something
and in the question there is force or effort is apply so we cannot say that
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