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TO. A ball is thrown vertically upward from the top of a building 240 feet tall with an initial velocity of 32 feet per second. The distance s (in feet) of the ball from the ground after t seconds is s(t) = 240 + 32t - 16t². (a) After how many seconds does the ball strike the ground? (b) After how many seconds will the ball pass the top of the building on its way down? (a) After seconds the ball strikes the ground. (b) The ball passes the top of the building on its way down after seconds.

TO. A ball is thrown vertically upward from the top of a building 240 feet tall with an initial velocity of 32 feet per second. The distance s (in feet) of the ball from the ground after t seconds is s(t) = 240 + 32t - 16t². (a) After how many seconds does the ball strike the ground? (b) After how many seconds will the ball pass the top of the building on its way down? (a) After seconds the ball strikes the ground. (b) The ball passes the top of the building on its way down after seconds.

Elementary Algebra
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter10: Quadratic Equations
Section10.4: Solve Applications Modeled By Quadratic Equations
Problem 159E: A bullet is fired straight up from a BB gun with initial velocity 1120 feet per second at an initial...
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A ba is thrown vertically upward from the top of a building 240 feet tall with an initial velocity of 32 feet per second. The distances (in feet) of the ball from the ground after t seconds is s(t) = 240 + 32t - 16t. 2 1 (a) After how many seconds does the ball strike the ground? (b) After how many seconds will the ball pass the top of the building on its way down? (a) After seconds the ball strikes the ground. (b) The ball passes the top of the building on its way down after seconds.
Transcribed Image Text:A ba is thrown vertically upward from the top of a building 240 feet tall with an initial velocity of 32 feet per second. The distances (in feet) of the ball from the ground after t seconds is s(t) = 240 + 32t - 16t. 2 1 (a) After how many seconds does the ball strike the ground? (b) After how many seconds will the ball pass the top of the building on its way down? (a) After seconds the ball strikes the ground. (b) The ball passes the top of the building on its way down after seconds.
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