Homework Statement
a stone is thrown vertically downward from the top of 40 m tall building with an initial speed of 1 after 2s the stone will have traveled a distance of?
Homework Equations
x=vt+0.5at^2
vf=vi+at
The Attempt at a Solution
1(2)+0.5(-9.8)(2)^2=-17.6
the answer i...