SOLUTION: Answer the question. You will need to use the formula 4.9t2 + vot = s. A bolt falls from an airplane at an altitude of 2265 meters (s). Approximately how long does it take for t

Algebra ->  Conversion and Units of Measurement -> SOLUTION: Answer the question. You will need to use the formula 4.9t2 + vot = s. A bolt falls from an airplane at an altitude of 2265 meters (s). Approximately how long does it take for t      Log On


   



Question 209950: Answer the question. You will need to use the formula 4.9t2 + vot = s.
A bolt falls from an airplane at an altitude of 2265 meters (s). Approximately how long does it take for the bolt to reach the ground? (Points: 5)

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!

4.9t%5E2+%2B+v%5B0%5Dt=+s where S = the distance above ground (the height or altitude), t = time in seconds, and v%5B0%5D is the initial velocity (zero in this case).
4.9t%5E2+=+2265 Divide both sides by 4.9
t%5E2+=+462.24489 Now take the square root of both sides.
highlight%28t+=+21.5%29seconds. (Rounded to the nearest tenth)