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An object is attached to an ideal massless spring with spring constant of 0.20 N/cm and...

An object is attached to an ideal massless spring with spring constant of 0.20 N/cm and undergoes simple harmonic oscillations with a period of 1.57 seconds. What is the weight of the object ?

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Answer #1

W = 2pi/T = 2pi)/(1.57 = 4 rad/s

W = sqrt(k/m)

=> m = 20/(4^2) = 1.25 kg

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