document.write( "Question 145506: Problem: Hooke’s Law states that the distance, d, a string is stretched varies directly with the force, F, applied to the spring. If a force of 12 pounds stretches a spring 3 inches, how far will the spring stretch when a force of 30 pounds is applied?
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Algebra.Com's Answer #106165 by ankor@dixie-net.com(22740)\"\" \"About 
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Problem: Hooke’s Law states that the distance, d, a string is stretched varies directly with the force, F, applied to the spring. If a force of 12 pounds stretches a spring 3 inches, how far will the spring stretch when a force of 30 pounds is applied?
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\n" ); document.write( "We can write Hooke's equation:
\n" ); document.write( "F = d*k
\n" ); document.write( "Where:
\n" ); document.write( "F = force
\n" ); document.write( "d = extension
\n" ); document.write( "k = constant
\n" ); document.write( ":
\n" ); document.write( "Find the k from the given statement:
\n" ); document.write( "\"If a force of 12 pounds stretches a spring 3 inches,\"
\n" ); document.write( "12 = 3k
\n" ); document.write( "k = 4
\n" ); document.write( ":
\n" ); document.write( "\" how far will the spring stretch when a force of 30 pounds is applied?\"
\n" ); document.write( "30 = 4d
\n" ); document.write( "d =\"30%2F4\"
\n" ); document.write( "d = 7.5 inches \n" ); document.write( "
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