A dog wishes to swim across a slow moving stream. the dog can swim at 2.0m/s in calm water. the current velocity is 3.0m/s. the distance across the stream is 50m wide.
a. if the dog points himself directly accross the stream, how long will it take to get across it?
b. how far downstream will the current have carried the dog when the dog gets to the other side?
c. what was the dogs velocity relative to the bank from where the dog started?