Physics

Problem

For a particle moving along the x-axis, its potential energy varies with position according to

U(x) = 10 - 3x

(in joules, with

x

in meters). As the particle moves from

x = 1\,\text{m}

x = 4\,\text{m}

, which of the following correctly describes the change in potential energy of the system? a)

\Delta U = +9\,\text{J}

, indicating energy was added to the system b)

\Delta U = -9\,\text{J}

, indicating energy was released by the system c)

\Delta U = -3\,\text{J}

, indicating energy was released by the system d)

\Delta U = -9\,\text{J}

, indicating energy was added to the system