document.write( "Question 1115857: Mitch tossed an apple to Kathy, who was on a balcony 40 feet above him, with an initial speed of 56 feet/second. Kathy missed the apple on its way up, but caught it on its way down.
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Algebra.Com's Answer #730693 by ikleyn(52803) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "As you know  (or must know),  the equation for the height above the ground for this case is\r\n" );
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document.write( "    h(t) = -16t^2 + 56t.\r\n" );
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document.write( "The maximum height is reached when this quadratic function gets its maximum, i.e.  at  t =  =  =  seconds, \r\n" );
document.write( "and is equal to  \r\n" );
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document.write( "     =  = 49 feet.\r\n" );
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document.write( "To find the zeroes, solve the equation\r\n" );
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document.write( "   h(t) = 0,  which is the same as  -16t^2 + 56t = 0,\r\n" );
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document.write( "                                     = 0,\r\n" );
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document.write( "so the zeroes are these values of t:  t= 0 seconds (start) and  t=  =  seconds (finish).\r\n" );
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\n" ); document.write( "\n" ); document.write( "The problem was solved couple of days ago at this link\r
\n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/Polynomials-and-rational-expressions/Polynomials-and-rational-expressions.faq.question.1115537.html\r
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\n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/Polynomials-and-rational-expressions/Polynomials-and-rational-expressions.faq.question.1115537.html\r
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\n" ); document.write( "For more details see the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Problem on a projectile moving vertically up and down\r
\n" ); document.write( "\n" ); document.write( "    - Problem on an arrow shot vertically upward\r
\n" ); document.write( "\n" ); document.write( "    - Problem on a ball thrown vertically up from the top of a tower \r
\n" ); document.write( "\n" ); document.write( "    - Problem on a toy rocket launched vertically up from a tall platform\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook under the topic \"Projectiles launched/thrown and moving vertically up and dawn\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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