A classic physics problem states that if a projectile is shot vertically up into the air with an initial velocity of 168 feet per second from an initial height of 113 feet off the ground, then the height of the projectile, h, in feet, t seconds after it's shot is given by the equation: h = – 16t + 168t + 113 Find the two points in time when the object is 146 feet above the ground. Round your answers to the nearest hundredth of a second (two decimal places).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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A classic physics problem states that if a projectile is shot vertically up into the air with an initial velocity of 168 feet per second
from an initial height of 113 feet off the ground, then the height of the projectile, h, in feet, t seconds after it's shot is given by
the equation:
h = -
16t + 168t + 113
Find the two points in time when the object is 146 feet above the ground. Round your answers to the nearest hundredth of a
second (two decimal places).
Transcribed Image Text:A classic physics problem states that if a projectile is shot vertically up into the air with an initial velocity of 168 feet per second from an initial height of 113 feet off the ground, then the height of the projectile, h, in feet, t seconds after it's shot is given by the equation: h = - 16t + 168t + 113 Find the two points in time when the object is 146 feet above the ground. Round your answers to the nearest hundredth of a second (two decimal places).
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