A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 25.9° with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 55.3 kg, and the coefficient of kinetic friction between the skis and the snow is 0.141. Calculate the magnitude of the force that the tow bar exerts on the skier.

Answer 1

I am not going to simply do all your homework for you. You try.
I am sure someone will help if you get stuck.
Draw a good sketch with all the forces and their directions on it.