Question

Do machines reduce the amount of work needed to perform a task?​

Answer 1

Explanation:

machine does not decrease the amount of work that is done. Instead, a machine changes the way in which work is done. Recall that work is the use of force to move an object. If, for example, you have to lift a heavy box, you can use a ramp to make the work easier.

Answer 2

Answer:

no machines are controlled by the human being so it depends on human how much work he gives sometimes due to overusing machines become failure