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If a ball is thrown vertically upward with a velocity of 80 ft/s, then its height after t seconds is s = 80t - 16t^2.

a) What is the maximum height reached by the ball

b) What is the velocity of the ball when it is 96 ft above the ground on its way up? On its way down?

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Mohd Talib
Mohd TalibLv10
12 Dec 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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A ball is thrown into the air with an upward velocity of 80 ft/s then its height after t second is  

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Vertical Motion A ball is thrown vertically upward from ground level with an initial velocity of 96 feet per second. Assume the acceleration of the ball is a(t) = -32 feet per second per second (Neglect air resistance.)

(a) How long will it take the ball to rise to its maximum height? What is the maximum height?

(b) After how many seconds is the velocity of the ball one-half the initial velocity?

(c) What is the height of the ball when its velocity is one-half the initial velocity?

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