11. A ball is thrown downward with a speed of 8 ft/s from the top of a 64-foot-tall building. After t seconds, its height above the ground is given by s(t) = -16t² - 8t + 64. a. Determine how long it takes for the ball to hit the ground. b. Determine the velocity of the ball when it hits the ground.
11. A ball is thrown downward with a speed of 8 ft/s from the top of a 64-foot-tall building. After t seconds, its height above the ground is given by s(t) = -16t² - 8t + 64. a. Determine how long it takes for the ball to hit the ground. b. Determine the velocity of the ball when it hits the ground.
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...
Related questions
Question
The question is a.determine how long it takes for the ball to hit the ground. And b. The speed of the ball when it hits the ground.
![a. Find the velocity and acceleration functions.
biDetermine the time intervals when the object is slowing down or speeding up.
11. A ball is thrown downward with a speed of 8 ft/s from the top of a 64-foot-tall building. After t seconds,
its height above the ground is given by s(t) = -16 - 8t + 64.
a. Determine how long it takes for the ball to hit the ground.
b. Determine the velocity of the ball when it hits the ground.
Copyright © 2021 by Thomas Edison State University. All rights reserved.
12. Find the derivative dy/dx for
11,440
W](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb945fc3f-2261-4908-adbf-e4a81926170c%2Fddb20354-c65a-4a69-873c-098aac9e3295%2Fp23lxu5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:a. Find the velocity and acceleration functions.
biDetermine the time intervals when the object is slowing down or speeding up.
11. A ball is thrown downward with a speed of 8 ft/s from the top of a 64-foot-tall building. After t seconds,
its height above the ground is given by s(t) = -16 - 8t + 64.
a. Determine how long it takes for the ball to hit the ground.
b. Determine the velocity of the ball when it hits the ground.
Copyright © 2021 by Thomas Edison State University. All rights reserved.
12. Find the derivative dy/dx for
11,440
W
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