- please provide correct solutions only- If unsure, please do not answer as this leads to a lot of confusion

A father pull his daughter on a toboggan on a mezen pond by a rope that makes an angle of 40" with the horizontal, as shown in the doram. The father mamlame a tension of 40 N in the rope and walks at a constant speed. If the combined mass of the girl and the toboggan i 23 Ag, the confident of kinetic friction between the toboggan and the surface of the pond is equal to Constant speed reccor /1 ma O a. 0.13 O b. 0.18 O d. 0.15