Biology, 13.02.2020 21:23 jandrew8007

Which statement best describes why a machine is useful?
A machine does a greater amount of work than the amount of work that is done on it.
Amachine does a smaller amount of work than the amount of work that is done on it.
Amachine can decrease both the input force and the input distance needed to do a given amount of work.
A machine can decrease either the input force or the input distance needed to do a given amount of work.

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Which statement best describes why a machine is useful?
A machine does a greater amount of wor...