document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=374316>Question 374316</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I did recieve an answer form this already but was unable to understand the steps. Is there some one who can help with explaining the steps for this problem please!\r<BR>\n" );
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document.write( "We can determine the time it would take an object to fall (if there were no air resistance) by using the formula   where d is the distance in feet and t is time in seconds.\r<BR>\n" );
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document.write( "A.	How long does it take a quarter dropped from the roof of a building 224 feet high to reach the ground?<BR>\n" );
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document.write( "B.  If there are 5,280 feet in one mile, how long would it take an object to fall  miles?  <BR>\n" );
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document.write( "C.  If it takes an object 15.5 seconds to fall d feet, how tall is the object?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #266405 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=266405\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We can determine the time it would take an object to fall (if there were no air resistance)<BR>\n" );
document.write( " by using the formula where d is the distance in feet and t is time in seconds.<BR>\n" );
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document.write( "A dropped object only has gravity effecting it which is 16t^2 = d<BR>\n" );
document.write( "where<BR>\n" );
document.write( " t = the time in seconds<BR>\n" );
document.write( " d = distance it falls (in feet)<BR>\n" );
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document.write( "A. How long does it take a quarter dropped from the roof of a building 224 feet high to reach the ground?<BR>\n" );
document.write( "16t^2 = 224<BR>\n" );
document.write( "Divide both sides by 16<BR>\n" );
document.write( "t^2 = +14<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2814%29 ALIGN=MIDDLE  ALT=\"sqrt%2814%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "t = 3.74 seconds<BR>\n" );
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document.write( "B. If there are 5,280 feet in one mile, how long would it take an object to fall miles?<BR>\n" );
document.write( "You neglected to say how many miles, assume it's 4 miles<BR>\n" );
document.write( "Note d has to be in ft because the gravitational constant is in ft/sec<BR>\n" );
document.write( "16t^2 = 4(5280) <BR>\n" );
document.write( "16t^2 = 21120<BR>\n" );
document.write( "divide both sides by 16<BR>\n" );
document.write( "t^2 = 1320<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%281320%29 ALIGN=MIDDLE  ALT=\"sqrt%281320%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "t = 36.33 seconds<BR>\n" );
document.write( "If it is not 4 miles, just use the same method using the given miles<BR>\n" );
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document.write( "C. If it takes an object 15.5 seconds to fall d feet, how tall is the object?<BR>\n" );
document.write( "Write the equation as:<BR>\n" );
document.write( "d = 16(15.5)^2<BR>\n" );
document.write( "d = 16(240.25)<BR>\n" );
document.write( "d = 3,844 ft  </SPAN>\n" );
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