1. The problem statement, all variables and given/known data A projectile is fired into the air from the top of a 200 m cliff above a valley as shown in the figure. Its initial velocity is 60 m/s above the horizontal. Where does the projectile land? 2. Relevant equations x=60cos60 t set the next equation equal to zero and solve for t: -200=60sin60t-1/2(-9.81)(t)^2 3. The attempt at a solution I solved for t so I could find horizontal displacement, ended up with the following quadratic but end up with a negative number inside square root. 4.9t^2+52t+200=0 I know my mistake is probably obvious but I cant see it, help appreciated.