1. The problem statement, all variables and given/known data UT has jumped over a wall and unfortunately for her, she forgot to bring her sword. Her friend SS decided to shoot the sword to her with a bow. He can bend a bow and arrow so that it gets a potential energy of 179 Nm. It seemed that Ut landed 9 meters behind the wall; a house was standing in the way. We know that the wall is 14 meters high. So, from which angle must SS shoot the arrow so that UT receives her sword quietly in her hands? ( Both Ut and her hand will be 2.4 meters above ground when she receives the sword, the sword weighs 1280 grams). Do we need more assumptions to solve the problem? 2. Relevant equations W= mgh 3. The attempt at a solution I started by calculating how much energy that was needed to get the sword to the top of the wall. W= 1.28 kg * 9.82 *14 = 176 Nm. He can bend the bow with a 179 Nm potential, that means he can get it over to the wall. I couldn't figure out more than this, don't really understand how get the right angle and what other assumptions might be.