Starting speed is 30 m/s
End speed is 15 m/s
Time elapsed is 3 s
Find the distance traveled (acceleration is constant)
the formula they gave me is
just pretend the is below not above, i dont know how to do sub-0 sorry.
anyway, i plug it all in and get
But the book says the answer is 90 m(Headbang)
thanks to any1 who helps! i think the book may be wrong, it wouldn't be the first time, but I'd like to be sure.