1. The problem statement, all variables and given/known data A person is standing on a cliff that is 10m tall, the boy is 2m back from the ledge of the cliff. He shoots an arrow at a 45 degree angle. Initial velocity is 5 m/s. I need to find max height when the arrow will reach the height. How far the arrow went in the X direction, and How far should I build a wall that's .5m high, so that the arrow just misses the wall. **We can use our calculators. 2. Relevant equations To set this up I used y1= -9.8 y2=-9.8t y3=10+3.5t-4.9x^2 y5=3.5 y6=-2+3.5t I found 3.5 from the Sin and Cos of 45. 3. The attempt at a solution I found the max height and the time that the arrow reached it from the parabola on my calculator 10.6m at .36sec but I can't seem to find the other ones. I just need to know which line to look at. Thanks so much!