Work Done by Movers: Calculating Force Needed for Crate

[fattydq]

How much work did the movers do (horizontally) pushing a 160-kg crate 10.3 m across a rough floor without acceleration, if the effect coefficient of friction was 0.50?

I don't know an equation that matches up with the given info, could someone get me started?

 

[Delphi51]

It involves work and friction. Do you have formulas for those concepts?

 

[fattydq]

Well the only formula on my formula sheet for class involving friction is Ffriction=u times N and I don't even know what that means...: /

 

[Delphi51]

Read this writeup on friction:
http://hyperphysics.phy-astr.gsu.edu/hbase/frict.html#fri
For Work, start here:
http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html#mechcon
Click "forces" then "work".