Answer: An 8.0 kg object is moving in the positive
Chapter , Problem 16(choose chapter or problem)
An 8.0 kg object is moving in the positive direction of an x axis. When it passes through x = 0, a constant force directed along the axis begins to act on it. Figure 7-28 gives its kinetic energy K versus position x as it moves from x = 0 to x = 5.0 m; Ko = 30.0 J. The force continues to act. What is v when the object moves back through x = -3.0m?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer