# 5dot8 - of the house? Write your answer in a sentence. 6. A...

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Examples for section 5.8 1. A rocket is launched from a rooftop with an upward velocity of about 80 ft/sec. The height, in feet, of the rocket, t seconds after having been launched from an 224-ft. high rooftop is given by: 224 80 16 ) ( 2 + + - = t t t h . a. After how long will the rocket reach the ground? b. After how long will the rocket be 324 feet above the ground? 2. Find x : 3. Solve for t : 2 7 15 2 = + t t 4. Solve for x : x x 4 9 2 = - 5. A ladder 26 feet long is leaning against the vertical wall of a house. How far from the house is the bottom of the ladder, if the ladder reaches 24 feet high on the wall
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Unformatted text preview: of the house? Write your answer in a sentence. 6. A rocket is launched upward with an initial velocity of 36 ft/sec. Its height, h , in feet, after t seconds, is given by: 2 16 36 ) ( t t t h-= . Write your answers in a sentence. a) How high will the rocket be after 1.25 seconds? b) After how long will the rocket be 18 feet high on its way up? c) After how long will the rocket hit the ground?...
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## This note was uploaded on 04/12/2011 for the course MTH 112 taught by Professor Williamson during the Spring '10 term at Grand Valley State University.

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