1. The problem statement, all variables and given/known data We are standing at a distance d=15 m away from a house. The house wall is h=6 m high and the roof has an inclination angle β=30 ∘. We throw a stone with initial speed v0=20 m/s at an angle α= 44 ∘. The gravitational acceleration is g=10 m/s2. (See figure) (a) At what horizontal distance from the house wall is the stone going to hit the roof - s in the figure-? (in meters) (b) What time does it take the stone to reach the roof? (in seconds) 2. Relevant equations 3. The attempt at a solution I set up 2 equations : s+15=20*cos(44)*t s/sqrt(3)+6=20*sin(44)*t-5t^2 and got s=.99 and t=1.11. What did I do wrong?