document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=874422>Question 874422</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given: m1v1 = m2v2, where m1 and v1 are the initial mass and velocity, <BR>\n" );
document.write( "    respectively, and m2 and v2 are the final mass and velocity.<BR>\n" );
document.write( "    A 21,000 pound train engine is traveling an average speed of<BR>\n" );
document.write( "    60 mi/hr. It strikes a stationary box car that weights 29,000<BR>\n" );
document.write( "    pounds. The train engine and box car continue mangled together<BR>\n" );
document.write( "    at what speed along the track?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #527478 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=527478\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> m1v1 = m2v2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2821000lb%29%2860mph%29+=+%2850000lb%29v%5B2%5D ALIGN=MIDDLE  ALT=\"%2821000lb%29%2860mph%29+=+%2850000lb%29v%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25.2mph+=+v%5B2%5D ALIGN=MIDDLE  ALT=\"25.2mph+=+v%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );