document.write( "Question 174608: The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8t^2=pi^2 L. If a child is on a swing with a 10-foot chain, then how long does it take to complete one cycle of the swing? \n" ); document.write( "
Algebra.Com's Answer #129630 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
8t^2=pi^2L
\n" ); document.write( "8t^2=3.14^2*10
\n" ); document.write( "8t^2=9.8596*10
\n" ); document.write( "8t^2=98.596
\n" ); document.write( "t^2=98.596/8
\n" ); document.write( "t^2=12.3245
\n" ); document.write( "t=sqrt12.3245
\n" ); document.write( "t=3.51 sec.
\n" ); document.write( "
\n" ); document.write( "
\n" );