- #1
aly1201
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Homework Statement
A diver pushes off horizontally from a cliff 35 m above the water, and they must clear rocks that extend 5 m from the base of the cliff. (a)What minimum pushoff speed is necessary to clear the rocks? (b)How long are they in the air?
Homework Equations
for (b) t=square root of 35/4.9=2.67 s I understand how to derive the time equation.
for (b) y=v(y direction)t+1/2at^2 x=v(x direction)t
The Attempt at a Solution
I solved time already, and I got 1.85 m/s for the initial velocity in the x direction, but I can't get the correct initial velocity in the y direction. I am not even sure what I am doing wrong but its frustrating.