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Select the correct answer. A ball is thrown straight down from the top of a building at a velocity of 16 ft/s. The building is 480 feet tall, and the acceleration due to gravity is 32 ft/s2. This problem can be represented using the following equation. How much time will the ball take to reach the ground

Respuesta :

jorgezarate

Answer:

The ball takes 5s to reach the ground

Explanation:

in order to solve this problem we use the kinematics equation with gravity as acceleration:

[tex]h=v_0t+1/2*gt^2[/tex]

we replace the values

[tex]0=1/2*32t^2+16t-480[/tex]

We solve this quadratic equation:

t=5s

t=-6s   (this solution has not physical sense)

2023el00288

Answer:

5 Seconds

Explanation:

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