SOLUTION: a rock 80m up the face of a cliff breaks loose about how long does it take the rock to fall to the ground?
the formula is
-5t2+vot+c=h
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Question 746910: a rock 80m up the face of a cliff breaks loose about how long does it take the rock to fall to the ground?
the formula is
-5t2+vot+c=h
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a rock 80m up the face of a cliff breaks loose about how long does it take the rock to fall to the ground?
the formula is
-5t2+vot+c=h
------------
s = at^2/2
80 = 10t^2/2
t = 4 seconds
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