I am having a very tough time trying to figure this one out. Any help would be appreciated. A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a consistent velocity of 10.0 m/s due north relative to the water. A) What is the velocity of the boat relative to the shore? B) If the river is 300 m wide, how far downstream has the boat moved by the time it reaches the north shore? Here is a picture I made that I hope illustrates what the problem is talking about. I hope it helps you. One of these days I am going to have an "aha!" moment and all these problems will make sense. But that "aha!" moment is not here yet, apparently. Thanks for your help.