SOLUTION: The height, h (in feet), of a falling object on Mars is given by h=-6t2+s , where t is the time in seconds and s is the initial height in feet. If an object were dropped from a hei

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: The height, h (in feet), of a falling object on Mars is given by h=-6t2+s , where t is the time in seconds and s is the initial height in feet. If an object were dropped from a hei      Log On


   



Question 567146: The height, h (in feet), of a falling object on Mars is given by h=-6t2+s , where t is the time in seconds and s is the initial height in feet. If an object were dropped from a height of 125 feet, how long would it take to travel half the distance to the ground?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+h+=+-6t%5E2+%2B+s+
+s+=+125+ ft
find +t+ when +h+=+125%2F2+
+125%2F2+=+-6t%5E2+%2B+125+
+125+=+-12t%5E2+%2B+250+
+-12t%5E2+=+-125+
+t%5E2+=+10.41666+
+t+=+3.2275+ sec