Asked by Anonymous

A rock is thrown upward with a velocity of 14 meters per second from the top of a 20 meter high cliff, and misses the cliff on the way back down. When will the rock be 12 meters from ground level
Answered by oobleck
just solve the height equation:
20 + 14t - 4.9t^2 = 12
Answered by bleep
x=3.528311 or x=-3.528311
Answered by fred
4.96 seconds
Answered by Jada Lee
Put it in quadratic equation, so A= -4.9 B=14 C=48,
X= 4.87