Energy in Simple Harmonic Motion
A mass attached to a spring undergoes simple harmonic motion with amplitude A and angular frequency $$\omega$$. If the mass is released from rest at its maximum displacement, at what time, expressed as a fraction of the period $$T$$, will the kinetic energy be 75% of the total mechanical energy?
A
T/12 and 5T/12
B
T/8 and 3T/8
C
T/6 and 5T/6
D
T/4
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