Analytical Method Use the Pythagorean Theorem then check graphicaly to compare the answers From the harbour, a boat travelled 5 km, East. Then, it turned and R=a2+62 traveled 3 km, North. How far did the a=5km boat travel and how far is the boat b=3km from its starting point after its travel? R=5 km2+3km2 5 km R=34km2 R=5.83km Solution: ACTIVITY: Solve for the resultant force when these two forces are combined. 40 Newton northward then 30 Newton to the East a. By using Pythagorean Theorem b. By graphical method