SOLUTION: A roofer tosses a piece of roofing tile from a roof onto the ground 30 feet below. He tosses the tile with an initial downward velocity of 10 feet per second. Write an equation

Question 1080744: A roofer tosses a piece of roofing tile from a roof onto the ground 30 feet below. He tosses the tile with an initial downward velocity of 10 feet per second.
Write an equation to find how long it takes the tile to hit the ground. Use the model for vertical motion, H=-16t^2+vt+h, where H is the height of an object after t seconds, v is the initial velocity, and h is the initial height. (hint: Since the object is thrown down, the initial velocity is negative.)
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A roofer tosses a piece of roofing tile from a roof onto the ground 30 feet below. He tosses the tile with an initial downward velocity of 10 feet per second.
Write an equation to find how long it takes the tile to hit the ground. Use the model for vertical motion, H=-16t^2+vt+h, where H is the height of an object after t seconds, v is the initial velocity, and h is the initial height.
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h(t) = -16t^2 - 10t + 30

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