document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=563775>Question 563775</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve these problem.<BR>\n" );
document.write( "Ignoring air resistance, the distance d in feet that an object falls in t seconds is given by the formula d=1/2gt^2, where g is approximately 32 ft.per second sq. this formula can also be express as d=16t^2.<BR>\n" );
document.write( "a. A plant falls from a window ledge 144 feet high. How long does it takes to hit the street below?<BR>\n" );
document.write( "b. A piece of concrete falls from a bridge 400 feet high,how long does it takes to hit the water below?\r<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 #365027 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=365027\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ignoring air resistance, the distance d in feet that an object falls in t seconds is given by the formula d = (1/2)gt^2, where g is approximately 32 ft.per second sq. this formula can also be express as d=16t^2.<BR>\n" );
document.write( "a. A plant falls from a window ledge 144 feet high. How long does it takes to hit the street below?<BR>\n" );
document.write( "Solve: 144 = 16*t^2<BR>\n" );
document.write( "t = sqrt(144/16) = 12/4 = 3 seconds<BR>\n" );
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document.write( "b. A piece of concrete falls from a bridge 400 feet high,how long does it takes to hit the water below?<BR>\n" );
document.write( "Solve: 400 = 16t^2<BR>\n" );
document.write( "t^2 = (400/16) = 20/4) = 5 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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