Question

what is a machine how is it use ful​

Answer 1

Answer:

Simple machines are useful because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever.

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Answer 2

Answer:

machines is something that reduce effort or extend the ability of people to perform tasks and make it easy to be done. Simple machines that are commonly  used are the wheel , axle, pulley, inclined plane, screw, wedge and lever etc

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