A student says that he had applied a force` F= - k/x `on a particle and the particle moved in simple harmonic motion. He refuses to tell whether k is a constant or not. Assume that he was worked only with positive x and no other force acted on the particle

Options

A. As x increases K increases
B. As x increases K decreases
C. As x increases K remains constant
D. The motion cannot be simple harmonic

Answer

A