1. The problem statement, all variables and given/known data A projectile is launched from the top of a cliff with an initial velocity of 20m/s at 30deg. above the horizontal. It hits the ground 3.0s later. Given projectile range is 52m and height is 14.1m, how do i calculate it velocity(magnitude and direction) 0.1s before it hits the ground? 2. Relevant equations d=vit+1/2at^2 vf=vi+at 3. The attempt at a solution I already calculated the range and the height, but i don't know how to do the velocity before it hits the ground based on those figures in the question. Please hints? Do i have to draw another triangle for the landing and use a new value for time or something?