A 30-Kg Mass Is Attached to a Spring with a Spring

A 3.0-kg mass is attached to a spring with a spring constant of 7.0 N/m and set into simple harmonic motion with an amplitude of 5.0 cm.When the mass has 36% of its maximum kinetic energy,how far away is it from its equilibrium position?

A) 1.8 cm
B) 3.2 cm
C) 3.4 cm
D) 4.0 cm
E) 4.4 cm

Correct Answer:

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