document.write( "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.\r
\n" ); document.write( "\n" ); document.write( "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.) \n" ); document.write( "

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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.\r
\n" ); document.write( "\n" ); document.write( "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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\n" ); document.write( "h(t) = -16t^2 - 10t + 30
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