1. The problem statement, all variables and given/known data Question: Provided all else is equal, if a ball is thrown at half the original speed will it travel half as far? 2. Relevant equations Δx = vΔt 3. The attempt at a solution In projectile motion, the time of flight will be the same no matter the horizontal velocity, as long as the height is the same. When I plug two different velocities into the above equation ( one being half of the other), the displacement is half. Issue with this? The answer in the book states this is not true. What am I doing wrong or not considering?