1. The problem statement, all variables and given/known data This is a Lab: A Ball is placed on a 14cm high ramp and it rolls down to the bottom of the ramp and onto a table where it rolls 20cm (the ramp's horizontal displacement is 16.5cm). After rolling on the table, the ball falls off the table for 76.5cm with a forward horizontal velocity. The goal of the lab is to predict where the ball will land on the ground. **There is also a 1cm drop between the ramp and the table (this is the problem) 2. Relevant equations Ug=mgh, KE=0.5m(v^2), Basic Kinematic Equations 3. My question: I have attempted this lab by assuming that the gravitational potential energy is completely converted over into kinetic energy, so I set their equations equal in order to find velocity. My teacher has informed us that since the ball we use is metal, frictional force between the ball and table is negligible. With this information, I can assume that the velocity of the ball coming off of the ramp is equal to the velocity of the ball when exiting the table. I then predict the landing point by using kinematics, however, i always predict it too far. I believe this is because there is a 1cm drop between the ramp and the table that causes the ball to bounce and lose energy. How can I calculate this energy loss?