Posted by susan on Monday, October 6, 2008 at 9:02pm.
A ball is droped out of a window of a tall building. If it hists the ground 3.5s later, how high aboe the ground is the window?

pre calcu  Reiny, Monday, October 6, 2008 at 9:06pm
the distance in metres is 4.9t^2 (from physics), where t is seconds and d is metres.
so the distance is 4.9(3.5)^2 or appr. 60 metres 
pre calcu  bobpursley, Monday, October 6, 2008 at 9:06pm
h=1/2 g t^2