Work done in overcoming friction

[dance_sg]

Homework Statement

A force of 52 N is applied to a 12 kg mass resting on a bench where the force of sliding friction is 15 N. The work done in overcoming friction while moving the object 24 m is

Homework Equations

w=fd

The Attempt at a Solution

do i have to do something special with the force of friction? or do i just plug the variables for force and distance in the equation and that is the answer..

 

[Pupil]

Homework Statement

A force of 52 N is applied to a 12 kg mass resting on a bench where the force of sliding friction is 15 N. The work done in overcoming friction while moving the object 24 m is

Homework Equations

w=fd

The Attempt at a Solution

do i have to do something special with the force of friction? or do i just plug the variables for force and distance in the equation and that is the answer..

That's a long bench! Yes, you have to account for friction. If we assume the force pulling the mass is completely in the horizontal, then it's pretty easy to find the net force (remember, the f in w = fd is the net (if you're finding total work done)!).