View Single Post
jkmath16
#1
Feb26-12, 08:03 PM
P: 1
1. The problem statement, all variables and given/known data

ball thrown horizontally from roof of building 55.0m tall and lands 29.7m from the base. find balls initial speed


2. Relevant equations
(√acceleration/[√2*55] ) * 29.7=8.86


3. The attempt at a solution
(sqroot acceleration/[2*55] ) * 29.7=8.86
the answer is correct..I am confused how it is that i can get to this formula.

I am confused to what "29.7m from the base" means
thanks all
*this is my first time posting, I hope i am doing it correct
Phys.Org News Partner Science news on Phys.org
Physical constant is constant even in strong gravitational fields
Montreal VR headset team turns to crowdfunding for Totem
Researchers study vital 'on/off switches' that control when bacteria turn deadly