# Homework Help: Output Work

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1. Nov 18, 2015

### NatalieWise123

1. The problem statement, all variables and given/known data
You apply 14,500 J of work to one end of a crowbar. If the crowbar is 1.2 m long, how much work is produced by the crowbar? (friction is not a factor)

2. Relevant equations
Work=distance*force

3. The attempt at a solution
There's hardly any information in this question so the only thing I can think to do is multiply the two numbers. That would give you 1.74 x 104 J which would make the output greater than the input which isn't allowed, right?

2. Nov 18, 2015

### Staff: Mentor

No, that would give 1.74 x 104 J m, which are not proper units for work.

Conservation of energy is indeed a good place to start.

3. Nov 18, 2015

### NatalieWise123

would the output just be equal to the input then?

4. Nov 18, 2015

### Staff: Mentor

Yes, if you can neglect any work done on the crowbar itself.

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