SOLUTION: A rock falls from a tower that is 192 feet high. As it is falling,its height is given by the formula h=192-16t^squared. How many seconds will it take for the rock to hit the ground

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A rock falls from a tower that is 192 feet high. As it is falling,its height is given by the formula h=192-16t^squared. How many seconds will it take for the rock to hit the ground      Log On


   

Question 186358: A rock falls from a tower that is 192 feet high. As it is falling,its height is given by the formula h=192-16t^squared. How many seconds will it take for the rock to hit the ground(h=0)?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
h=192-16t^squared
0=192-16t^2
16t^2=192
t^2=192/16
t^2=12
t=sqrt12
t=3.464 sec. ans.