Calculating Amplitude of Mass on Spring on Frictionless Surface

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tdash
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mass attached to spring on horizontal frictionless surface. given: position x at time zero, velocity at time zero (not equal to zero), spring constant, and mass. how do I figure out the amplitude?
 
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welcome to pf!

hi tdash! welcome to pf! :smile:
tdash said:
how do I figure out the amplitude?

try conservation of energy :wink: