SOLUTION: Problem
In 1981 Vladimir Poliakov set a world record of 19ft3/4in for the pole vault. To reach that height, Poliakov obtained a speed of approximately 36 ft per second on the runw
Question 81806: Problem
In 1981 Vladimir Poliakov set a world record of 19ft3/4in for the pole vault. To reach that height, Poliakov obtained a speed of approximately 36 ft per second on the runway. The formula h = -16t + 36t gives his height t seconds after leaving the ground. Use the formula to find the exact values of t for which his height is 18ft.
This is what I have
18 = -16t + 36t
18 = 20t
20t/20 = 18/20
t = 9/10
Not sure if I did this right, would appreciate your input. Thank you Answer by rapaljer(4671) (Show Source):
