SOLUTION: The formula s = 16t^2 is used to approximate the distance, s, in feet, that an object falls freely from rest in t seconds. At 630 ft, the Gateway Arch in St. Louis is the tallest m

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: The formula s = 16t^2 is used to approximate the distance, s, in feet, that an object falls freely from rest in t seconds. At 630 ft, the Gateway Arch in St. Louis is the tallest m      Log On


   

Question 1162008: The formula s = 16t^2 is used to approximate the distance, s, in feet, that an object falls freely from rest in t seconds. At 630 ft, the Gateway Arch in St. Louis is the tallest man-made monument in the U.S. Use the formula provided to determine how long it would take an object dropped from the top of the Gateway Arch to reach the ground.
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

16t^2 = 630


t^2 = 630%2F16 = 39.375


t = sqrt%2839.375%29 = 6.275 seconds.    ANSWER