SOLUTION: Divers fall from a point 36 meters above the sea. a) How long does it take them to hit the water? b) What is their velocity when they enter the water? I dont kno

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Divers fall from a point 36 meters above the sea. a) How long does it take them to hit the water? b) What is their velocity when they enter the water? I dont kno      Log On


   

Question 338453: Divers fall from a point 36 meters above the sea.
a) How long does it take them to hit the water?


b) What is their velocity when they enter the water?



I dont know how to solve
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
gravitational acceleration is 9.8m/s^2 (meters per second per second)

starting from rest , distance equals one half acceleration times time squared ___ d = .5 a t^2

36 = .5 * 9.8 * t^2 ___ 72/9.8 = t^2 ___ use your calculator to find t

velocity equals acceleration times time ___ v = at = 9.8 * t ___ use the calculated value of t to find the velocity