document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=878535>Question 878535</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car of mass 1000 kg moving with a velocity of 36 km/h collides with a tree and come to in rest in 5 sec. what will be the force exerted by the car on the tree. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #530036 by </B><A HREF=/tutors/aboutme.mpl?userid=dkppathak><B>dkppathak(439)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dkppathak><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=dkppathak><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=530036\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A car of mass 1000 kg moving with a velocity of 36 km/h collides with a tree and come to in rest in 5 sec. what will be the force exerted by the car on the tree.<BR>\n" );
document.write( "mass of car  m= 1000 kg <BR>\n" );
document.write( "velocity (initial speed ) U = 36km/h (by converting into m/s )<BR>\n" );
document.write( "=36x5/18=10 m/s <BR>\n" );
document.write( "final speed  V=0<BR>\n" );
document.write( "we know  V=U +at<BR>\n" );
document.write( "        0= 10 +ax5<BR>\n" );
document.write( "-10/5 =-2m/s retardation ( negative acceleration is known as retardation)<BR>\n" );
document.write( "Force = mass x acceleration <BR>\n" );
document.write( "force =1000x2 =2000 kg-m/s^2 <BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );