HELP!!!System of particles problem 1. The problem statement, all variables and given/known data A 10kg dog walks 3m on a 20kg boat towards shore. How much nearer the shore does the dog end up if the boat was initially at rest. 3. The attempt at a solution I am not really sure how to approach this problem. I think that the dog is 3 meters closer to the shore, because the boat stays at rest while the dog moves toward the shore...yet I think this is wrong because it is too simple as a physics problem... Can anyone help me with this problem? thank you very much.