Winch Boat

I need help with this Kenetic energy and Work question?
A boat, of mass 300kg, is winched up a beach, which can be modelled as a slope inclined at 10° to the horizontal. When the boat has travelled 12 m it is travelling at 1ms^-1. If a friction force, of magnitude 500N acts, find the work done by the winch.
The work function WE = Fd + mgh; where F = 500 N, d = 12 m, m = 300 kg, and h = d sin(theta) where theta = 10 deg. Plug and chug.
The physics is this. Work is done to overcome the friction force for 12 meters of pull. Work is also done to lift the boat weight mg to a height h.
The fact that the boat has some velocity while going up the ramp is immaterial to the work done. But, and this is a big BUT, it does determine how much power WE/dt = power is needed to do the work. That is, to hoist it faster and thereby have a shorter time interval dt. your winch needs more power. This results because power = work energy/time interval.
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