What is the coefficient of kinetic friction in this problem?

[JohnSmith12]

Thanks everyone for your help.

 

[NTW]

The velocity is constant, and that means that the acceleration is zero. That has something to do with the net force...

 

[Doc Al]

I solved for the mass of the sled, 23.98kg.

OK, but that step was unnecessary. (You were given mg, and that's what you need.)

But without mk I'm having difficulty finding an answer.

mk, usually symbolized as $\mu_k$, is what you are solving for. Use NTW's hint to determine for the force of friction, Ff. Then you can solve for the coefficient of friction.