Asked by Kelly

A rock is thrown upward with a velocity of 12 meters per sec from the top of a 25 meter high cliff and it misses on it's way back down. When will the rock be 3 meters from water
Answered by Steve
find t when

25 + 12t - 5t^2 = 3

using g=10 (easier than using 9.81)
Answered by emily
3.67
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