document.write( "Question 113629: Find the time required for an object to fall to the ground from a building that is 1400 ft high. \n" ); document.write( "
Algebra.Com's Answer #728825 by amalm06(224)\"\" \"About 
You can put this solution on YOUR website!
I solved the same problem earlier, using only energy conservation and momentum principles: https://www.algebra.com/algebra/homework/Polynomials-and-rational-expressions/Polynomials-and-rational-expressions.faq.question.91991.html. Here is a more \"mathematical\" solution:\r
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\n" ); document.write( "\n" ); document.write( "Consider: \"dy=+at+dt\"\r
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\n" ); document.write( "\n" ); document.write( "Integrate both sides: \"int%281%2C+dy%2C0%2Cy+%29=int%28+at%2Cdt%2C0%2Ct%29\"\r
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\n" ); document.write( "\n" ); document.write( "So that \"426.62=%28a%29%28t%5E2%2F%282%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Solve for t: t=9.33 s (Answer)
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