A person on a bridge 42 feet above the ground, drops his cell phone (see picture). The height of the falling cell phone is modeled byHeight = -16t2+12t+42where the height is measured in feet and the time t is measured in fewHow many seconds will it take the cell phone to reach the ground? t = seconds (Round your answer to 3 decimal places).

Given the person is on a bridge, 42 feet above the ground. Height =-16t2+12t+42.

Answered: A person on a bridge 42 feet above the…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A person on a bridge 42 feet above the ground, drops his cell phone (see picture). The height of the falling cell phone is modeled by

Height = -16t²+12t+42

where the height is measured in feet and the time t is measured in few

How many seconds will it take the cell phone to reach the ground? t = seconds (Round your answer to 3 decimal places).

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