Posted by jholm on Tuesday, February 14, 2012 at 4:36pm.
how long does it take to fall 15m?
h=1/2 g t^2 solve for t.
then, distancewenthorizontal: 15*time
is g negative or positive, because that is what i did and the answer is still wrong!
final position is -15. g is -9.8m/s^2.
the negative direction is up to you. You decide on the frame of reference. Most choose up as positive, downwards as negative.
so h is 15, g is 9.8
15= 4.9t^2
then take the square root of 3.061. then do i multiply by 15?
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