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30. A rock falls from where the dashed line
meets the cliff
A. Write the projectile motion model
for this situation.
8. Find the time it takes for the rock to
hit the water.
C Does doubling the height from
which the rock falls double the time
it takes to fall? If so, use the falling
rock to demonstrate why. If not,
determine the height from which
the rock must fall for the time to
double