1. The problem statement, all variables and given/known data Projectile A is launched horizontally at a speed of 20. meters per second from the top of a cliff and strikes a level surface below, 3.0 seconds later. Projectile B is launched horizontally from the same location at a speed of 30. meters per second. Approximately how high is the cliff? (1) 29 m (3) 60. m (2) 44 m (4) 104 m 2. Relevant equations d=tv 3. The attempt at a solution On two occasions my answer turn out to be '3' and '4'. but the answer key says it's '2'. I have tried for hours but i cant find the right approach. Please offer me a good explanation of how I should work with this? or u can even give me a link to read more or something.