document.write( "Question 736358: the wheels of a truck travelling at 60 km/h make 4 revolutions per second. What is the diameter of each wheel in metres \n" ); document.write( "
Algebra.Com's Answer #449870 by ankor@dixie-net.com(22740)\"\" \"About 
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the wheels of a truck travelling at 60 km/h make 4 revolutions per second.
\n" ); document.write( " What is the diameter of each wheel in metres
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\n" ); document.write( "Find the distance traveled by the wheel in 1 sec
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\n" ); document.write( "\"60000%2F3600\" = 16\"2%2F3\" meters traveled in on sec
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\n" ); document.write( "At 4 rps
\n" ); document.write( "4*pi*d = 16\"2%2F3\"
\n" ); document.write( "d = \"16.6667%2F%284%2Api%29\"
\n" ); document.write( "d = 1.3263 meters is the diameter of the wheel
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\n" ); document.write( "Check that
\n" ); document.write( "\"%281.3263%2Api%2A4%2A3600%29%2F1000\" ~ 60 km/hr
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