1. The problem statement, all variables and given/known data One stone is dropped from the the top of a tall cliff, and a second stone with the same mass is thrown vertically from the same cliff with a velocity of 10.0 m/s [down], 0.50seconds after the first. Calculate the distance below the top of the cliff at which the second stone overtakes the first? 2. Relevant equations v=0 d= -1/2(a)(t)^2 v=10 d=10(t)-1/2(a)(t)^2 3. The attempt at a solution we have two unknowns, how can we solve it?!?!