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Solve the Problem tt In Seconds Is s=16t2+32ts = 16 t ^ { 2 } + 32 t

Question 142

Multiple Choice

Solve the problem.
-A ball is thrown downward from a window in a tall building. Its position at time tt in seconds is s=16t2+32ts = 16 t ^ { 2 } + 32 t , where ss is in feet. How long (to the nearest tenth) will it take the ball to fall 152 feet?


A) 2.2sec2.2 \mathrm { sec }
B) 2.0sec2.0 \mathrm { sec }
C) 4.8sec4.8 \mathrm { sec }
D) 3.1sec3.1 \mathrm { sec }

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