A spring has a force constant of 500N/m. Show that the energystored in the sprin

Question

A spring has a force constant of 500N/m. Show that the energystored in the spring is as follows:       a) 0.400J when the springis stretched 4cm from equilibrium       b) 0.225J when the springis compressed 3cm from equilibrium       c) zero when the spring isunstreched A spring has a force constant of 500N/m. Show that the energystored in the spring is as follows:       a) 0.400J when the springis stretched 4cm from equilibrium       b) 0.225J when the springis compressed 3cm from equilibrium       c) zero when the spring isunstreched

Explanation / Answer

equation is E = (1/2)kx2, convert cm tometers a)   E = (1/2)kx2          =(1/2)(500)(0.04)2          = 0.4 J b)   E = (1/2)(500)(-0.03)2           = 0.225J C) E = (1/2)(500)(0)          = 0           = 0.225J C) E = (1/2)(500)(0)          = 0

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