State four ways in which machines are useful to us.

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asked Dec 6 in Class X Science by aditya23 Expert (1,763 points)

 State four ways in which machines are useful to us.

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answered Dec 6 by muskan15 (-1,113 points)

(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.
(iv) A machine can be used to overcome a load at some point by applying an effort at a convenient point.

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