How to get the force?

[jamesblim168]

Homework Statement

you push a 25 kg box across a wooden floor at constant speed. how much force do you exert on the floor? (mu(k) = 0.20

Homework Equations

Ff=<uFn

The Attempt at a Solution

this is wat i get so far
mass = 25kg
uk= .20

.20<.20x25
.20<5

is this correct? im confuse coz of how much force you exert on the floor not on the box?
i need help guys

 

[hav0c]

solve your other question
you'll get this one too

 

[jamesblim168]

solve your other question
you'll get this one too

what do you mean?

 

[Doc Al]

What forces does the box exert on the floor?

 

[hav0c]

what do you mean?

your thread "How to calculate force applied?" contains the answer