1. The problem statement, all variables and given/known data Two balls are thrown vertically upward, one with an initial speed twice that of the other. The ball with the greater initial speed will reach a height - twice that of the other - 4 times that of the other 2. Relevant equations dy = vt + 1/2 at^2 [if i use this equation, i will get twice of the other] vf^2 = v1^2 + 2ad -v1^2 = 2ad [if i use the equation, i will get 4 times of the other] 3. The attempt at a solution I get both 2 times and 4 times..