The rock's height is increasing in the interval from 0 seconds to 3 seconds.
At time 0 the rock starts moving upward from 52 foot until it reachs 180 foot height (time 3 seconds). Then the rock starts to descend, which means that the height starts to decrease.
Answer:
216 times smaller, 21600%, the cross section is a rectangle or square
Your answer will be 1 19/20
hope this helps
