10. Conservation of Energy
10. Conservation of Energy / Force & Potential Energy / Problem 15
A conservative force acts on a ball along the y-axis. As a result, it moves along the same axis. Its potential energy versus the y-axis graph is given below. It can be seen that the total energy E > U(y), which implies the speed of the ball is always non-zero. Find the interval(s) of y in which the force on the ball acts toward the positive y direction.
![Graph of potential energy U(y) versus y-axis showing total energy E and intervals for force direction.](https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/e0b8e5b5-d7fd-4a5f-9564-52b042a730ad)
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