Question

question 1 - 8
a skydiver is planning her jump out of an airplane. typically, she will jump at a height of 13,500 feet, and she will pull the cord when she is 5,000 feet above the ground. if the equation for the distance traveled during free fall is given as ( d(t)=-16 t^{2} ), how long should she wait before pulling the cord? round your answer to the nearest whole second.
seconds

Explanation:

Step1: Calcular la distancia recorrida

La distancia recorrida durante el salto es \(13500 - 5000=8500\) pies.

Step2: Sustituir en la ecuación

Sustituir \(d(t) = 8500\) en la ecuación \(d(t)=-16t^{2}\) (pero como es distancia recorrida, tomamos valor absoluto, es decir \(8500 = 16t^{2}\))

Step3: Resolver para \(t\)

Despejar \(t\):

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Answer:

23