Question
A rock is tossed in the air from over a bridge over a river. its height above the water, h, in meters after t seconds
A rock is tossed in the air from over a bridge over a river. its height above the water, h, in meters after t seconds is h=-5t^2 + 20t +19.
A) From what height above the water is the rock tossed?
B) Find the maximum height of the rock and the time when this height is reached
C) At what time does the rock hit the water?
Please show all steps.
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Fundamentals of Thermodynamics
Authors: Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen
6th edition
471152323, 978-0471152323
