document.write( "Question 1174319: A stone is dropped into a mine shaft and hits the bottom 4.25 s later. How deep is the mine shaft? The equation for the distance an object falls in T seconds is T =sqrt(d/16), where d is the distance in feet. \n" ); document.write( "

Algebra.Com's Answer #799753 by ikleyn(52790) $\"\"$ $\"About$

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document.write( "From the condition, you write this equation\r\n" );
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document.write( "    4.25 = \r\n" );
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document.write( "Then you square both sides\r\n" );
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document.write( "    4.25^2 = d/16\r\n" );
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document.write( "and finally obtain  d = 16*4.25^2 = 289 ft.    ANSWER\r\n" );
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