SOLUTION: A ball is thrown downward from the top of a 130​-foot building with an initial velocity of 29 feet per second. The height of the ball h after t seconds is given by the equati

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A ball is thrown downward from the top of a 130​-foot building with an initial velocity of 29 feet per second. The height of the ball h after t seconds is given by the equati      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1079293: A ball is thrown downward from the top of a 130​-foot building with an initial velocity of 29 feet per second. The height of the ball h after t seconds is given by the equation.h= −16t2−29t+130. How long after the ball is thrown will it strike the​ ground?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
h= −16t2−29t+130
When h = zero.
−16t2−29t+130 = 0
Solve for t.