document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=324529>Question 324529</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You drop a penny from a 70-foot high bridge.  What is the velocity of the penny when it hits the water below?  Neglect the effect of air resistance and round your answer to the nearest unit. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #232254 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=232254\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the time until impact.<BR>\n" );
document.write( "s = (1/2)at^2<BR>\n" );
document.write( "a = acceleration due to gravity, ~32 ft/sec/sec on Earth<BR>\n" );
document.write( "70 = 16t^2<BR>\n" );
document.write( "t^2 = 70/16 = 4.375<BR>\n" );
document.write( "t = 2.09 seconds<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "v = at = 32*2.09<BR>\n" );
document.write( "v =~ 67 ft/sec<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );