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Chapter 9: Oscillations
8.

Energy of a Block on a Spring

For an undamped block-spring oscillator, the total energy remains constant throughout and is equal to Etot=12kA2+12mvmax2 This energy moves back and forth between the kinetic and spring potential energies: Etot=Ek+Es=12m(v(t))2+12k(y(t))2 where y(t) is the displacement of the block, and v(t) the velocity, at a given time t.