document.write( "Question 433567: An object that is projected straight downward
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document.write( "with initial velocity v feet per second travels a
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document.write( "distance s=vt+16t^2, where t = time in seconds.
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document.write( "If Ramón is standing on a balcony 84 feet above
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document.write( "the ground and throws a penny straight down
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document.write( "with an initial velocity of 10 feet per second, in
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document.write( "how many seconds will it reach the ground? \n" );
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Algebra.Com's Answer #300552 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! An object that is projected straight downward with initial velocity v feet per \n" ); document.write( " second travels a distance s=vt+16t^2, where t = time in seconds. \n" ); document.write( "If Ramón is standing on a balcony 84 feet above \n" ); document.write( "the ground and throws a penny straight down \n" ); document.write( "with an initial velocity of 10 feet per second, in \n" ); document.write( "how many seconds will it reach the ground? \n" ); document.write( ": \n" ); document.write( "The equation for this would be: \n" ); document.write( "(negative means down) \n" ); document.write( "-16t^2 - 10t + 84 = 0 \n" ); document.write( "solve this using the quadratic equation, the positive solution: t = 2 sec \n" ); document.write( " |