1. During the development of a ship having a length of 125 m, it is desired to test a 10% model in a towing tank to determine the drag characteristics of the hull. Determine how the model is to be tested if the Froude number is to be duplicated.
2. A one-sixth scale model of a torpedo is tested in a water tunnel to determine drag characteristics. Determine
(a) the prototype resistance if the model resistance is 45 N and
(b) the velocity that corresponds to a torpedo velocity of 20 knots.