You want to cross a river by boat from A to B. Because the flowing water drifts your boat, you have to correct the sailing angle. Under which angle should you sail to reach the other side in B and how long does the crossing take?[br][list][*]Show the arithmetic solution by selecting the check box Analytically.[br][/*][*]Experiment with angles and speeds and graphically show the result by selecting the check box Displacement.[br][/*][/list]