# What is input work?

by icecomet
Tags: input, work
 P: 5 okay so input force is the amount of force that is put in right? so you can find that by using the formula force = mass x accleration... but then what is input work? work is the result of force... but then wouldn't that be output work? i don't understand teh concept of input work.... what is it? how do you find it?
 Sci Advisor P: 2,193 Umm, I'm unfamiliar with your terminology but I think what you're getting at is this: Input work would be the work done on a body or system, that is, forces that are applied to the body or system. This is in contrast to output work which is a force that is applied by the body or system to something else.
 P: 4,667 There are two ways you can apply force to an object: 1) Force times time dt is called an impulse and adds to the momentum of the object. 2) Force times distance dx is called work and adds energy to the object.

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