A particle is in simple harmonic motion along the x axis.The amplitude of the motion is x_m.At one point in its motion its kinetic energy is K = 5 J and its potential energy (measured with U = 0 at x = 0)is U = 3 J.When it is at x = x_m, the kinetic and potential energies are: A)K = 5 J and U = 3 J B)K = 5 J and U = -3 J C)K = 8 J and U = 0 J D)K = 0 J and U = 8 J E)K = 0 J and U = -8 J

Question

Quizplus · Accepted Answer

At the amplitude (x = xm), the particle is momentarily at rest, so kinetic energy K = 0 J. The total energy is the sum of kinetic and potential energies, which is 8 J (5 J + 3 J). Therefore, at x = xm, the potential energy U = 8 J.

A Particle Is in Simple Harmonic Motion Along the X