what are the ways in which machines help us ?
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Answer. (i) A 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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(i) A machine can be used to obtain a gain in speed. (ii) A machinecan be used to lift a load in one direction by applying an effort in a convenient direction. (iii) A machinecan be used to lift a heavy load by applying a less effort.
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