Maximum Speed and Energy in Oscillations
A 0.5 kg mass attached to a spring oscillates with a period of 0.4 s and an amplitude of 0.2 m. Under which of the following conditions is the speed of the mass at its maximum?
A
When elastic potential energy is maximum
B
When elastic potential energy equals zero
C
When kinetic energy equals elastic potential energy
D
At one-quarter of a period after maximum displacement
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