A particle is in simple harmonic motion along the x axis. The amplitude of the motion is xm. When it is at x = x1, its kinetic energy is K = 5 J and its potential energy (measured with U = 0 at x = 0) is U = 3 J. When its potential energy is 8 J, it is at:
A) x = 0
B) x = x1
C) x = xm/2
D) x = xm/
E) x = xm
Correct Answer:
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