Question: A particle moves under the influence of a conservative force. At point A the particle has a kinetic energy of 12 J; at point B

A particle moves under the influence of a conservative force. At point A the particle has a kinetic energy of 12 J; at point B the particle is momentarily at rest, and the potential energy of the system is 25 J; at point C the potential energy of the system is 5 J.
(a) What is the potential energy of the system when the particle is at point A?
(b) What is the kinetic energy of the particle at point C?

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