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?
v=V(not) + at
x=V(not)t + 1/2at(Squared)
V(Squared) =V(not) + 2ax
The Attempt at a Solution
I wrote the following
V(not) = ?
a= 9.80 (Because it is a free fall question?)
I think I am missing a variable but I do not know which one.
EDIT: Will I have to do A2+B2=C2?
If so what will be the legs and what will be the hyp?