1. The problem statement, all variables and given/known data A student drops a ball from the top of a tall building; it takes 2.5 s for the ball to reach the ground. A.What was the ball’s speed just before hitting the ground? B.What is the height of the building? 2. Relevant equations v=V(not) + at x=V(not)t + 1/2at(Squared) V(Squared) =V(not) + 2ax 3. The attempt at a solution I wrote the following V(not) = ? a= 9.80 (Because it is a free fall question?) t= 2.5 v= ? x= ? I think I am missing a variable but I do not know which one. thanks EDIT: Will I have to do A2+B2=C2? If so what will be the legs and what will be the hyp?