1. The problem statement, all variables and given/known data A ball is thrown upwards. Its velocity at 3/5 its max height is 16.0m/s What is its initial velocity? What is its max height? 2. Relevant equations vf^2 = vi^2 -2g(yf-yi) define up as positive 3. The attempt at a solution I ran through numerous attempts on paper but can't seem to find a proper answer. The closest I got was an answer that spit out a negative height.... help? Somewhat urgent as I need to bring this question in tomorrow for homework. Thank you!