Hooke's law describes an ideal spring. Many real springs are better described by the restoring force (Fsp)s=-kΔs-q(Δs)3, where q is a constant. Consider a spring with k = 300 N/m and q= 900 N/m3. a.) How much work must you do to compress this spring 15 cm? Note that, by Newton's third law, the work you do on the spring is the negative of the work done by the spring. b.) By what percent has the cubic term increased the work over what would be needed to compress an ideal spring?
Hooke's law describes an ideal spring. Many real springs are better described by the restoring force (Fsp)s=-kΔs-q(Δs)3, where q is a constant. Consider a spring with k = 300 N/m and q= 900 N/m3. a.) How much work must you do to compress this spring 15 cm? Note that, by Newton's third law, the work you do on the spring is the negative of the work done by the spring. b.) By what percent has the cubic term increased the work over what would be needed to compress an ideal spring?
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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Hooke's law describes an ideal spring. Many real springs are better described by the restoring force (Fsp)s=-kΔs-q(Δs)3, where q is a constant. Consider a spring with k = 300 N/m and q= 900 N/m3.
a.) How much work must you do to compress this spring 15 cm? Note that, by
b.) By what percent has the cubic term increased the work over what would be needed to compress an ideal spring?
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