Homework Statement
Homework Equations
y = y0 + Vot + 1/2gt²
The Attempt at a Solution
We have to know when yball = y rock
for the ball : t = t-1 because it's throwed 1 sec later the rock.
we have to fine when yball = yrock :
12.t - 0.5*9.8*t² = 18*(t-1) - 0.5*9.81*(t-1)²..I find the answer...
Hello everyone,
My name's Djamel, I'm from belgium but at the moment I live in UK to improve my english level. It's been a long time I finish my study ( a bachelor in industrial chemistry). I have in my project to return at university to make study. I'm preparing my self, I bought many books...