Solving for Work: 14,500J Applied to 1.2m Crowbar

[NatalieWise123]

Homework Statement

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)

Homework Equations

Work=distance*force

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?[/B]

 

[DrClaude]

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

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

which would make the output greater than the input which isn't allowed, right?

Conservation of energy is indeed a good place to start.

 

[NatalieWise123]

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.

would the output just be equal to the input then?

 

[DrClaude]

would the output just be equal to the input then?

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