Hi,
Imagine a boat with a skier behind it (connected with a rope).
Mass of boat=2000Kg
Mass of skier=80Kg
At 20m/s the boat engine has a power output of 140kW
Calculate the total resistive force.
Power=FxV
140000W=Fx20m/s
F=7000N
Is the answer right ? I doubt my answer, even if its really...