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A train with a total mass 2.20E+6kg rises 600m as it travels a distance of 53.0km along a steady slope at a constant speed of 10.0km/hr. The frictional force on the train is 1.400 percent of the weight. Find the kinetic energy of the train.

I did this using K=.5*m*vsquared and got 8501240.

It then asks:

Find the energy dissipated by kinetic friction.

and

Find the power output of the train engines.

I am unsure as to how to find the energy dissipated by kinetic friction. I thought it involved using fk = muk * N

where Mu is the coefficient of friction and N is the normal force. Yet, I could not seem to find the answer.

For the power I tried using P= .5 m Vsquared / t. And finding t from the information given but this also did not work.

Thanks for helping!