1. The problem statement, all variables and given/known data Here is a question that I spent 1 hour trying to find a solution but I din't come up with any solution, so plz give me any hint you know to solve this problem. The question is: You're 6.0 m from one wall of a house. You want to toss a ball to your friend who is 6.0 m from the opposite wall. The throw and catch each occur 1.0 m above the ground. A.What minimum speed will allow the ball to clear the roof? B.At what angle should you toss the ball? Help me with the first part only, I can find the second part by myself. 2. Relevant equations 3. The attempt at a solution I found the hight from where the ball is caught(1.0m above the ground) to the highest point of the roof where the ball clear the roof. The hight is 3 m but Ididn't find an equation to find the velocity.