1. The problem statement, all variables and given/known data I have a boat moving at 2.3 mph towing a plankton net in water weighting 8.5lbs. I want the net to be towed at a depth of 10m from the surface. How much rope do I need to let out from the boat? 2. Relevant equations basic trig sin=cos=tan 3. The attempt at a solution I cannot find the angle of the rope in the water from the surface of the water.